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Ultimate FISH Room Tour with more than 60 Species — Transcript

by Edgars Fish Channel · 2,505 words · 400 segments · language en · Watch on YouTube

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0:00hello friends and welcome back to the channel
0:02you probably expected a fish room tour
0:04but this isn't an ordinary one
0:07these are my four favourite aquatic projects of 2025
0:11showing how they've changed
0:12struggled and evolved throughout the year
0:16expect aquascaping predator prey interactions
0:20real drama and ecosystems full of fish crustaceans
0:24insects snails and plants
0:27let's jump right in
0:29our fish room tour starts with a tropical river
0:33flowing through this glass box
0:36plants as tall as a grown up man
0:39fish moving through layers
0:41predators and grazers locked into balance
0:44but this did not happen overnight
0:47this is the result of 420 days of growth mistakes
0:51and nature pushing back
0:58every river begins at the bottom
1:00pond soil on top I used
1:03old substrate
1:03from a tank that was running for around 15 years
1:06straight which is already packed with living bacteria
1:10and on top of that simple play sand
1:13nothing fancy no bottle shortcuts
1:16no chemical fixes just biology and time
1:20within days life moves in
1:22snails grazing the glass corydoras sifting the sand
1:27and guppy fish claiming the surface
1:30the system wakes up fast
1:35by week 2 the jungle takes over
1:39plants explode with growth without CO2
1:42without chemical fertilizers
1:45but growth always has a shadow
1:47an algae bloom follows the fix
1:49trans of algae creeping across glass and leaves
1:53this is the first lesson
1:54abundance always demands regulation
1:58so the ecosystem expands
2:01Amano shrimp and cherry shrimp arrived
2:03tireless cleaners working day and night
2:07Ember tetras fill the empty midwater on day 150
2:11glowing orange against the green
2:14turning empty space into movement
2:16for a while everything fits
2:28on Day 165 the rules change completely
2:32predators enter the system
2:34Mr Krabs confident and fast
2:37and Larry Lobster injured
2:39barely holding on life
2:41missing almost everything except the will to live
2:45in a healthy ecosystem weakness isn't erased
2:49it's tested
2:51eleven days later Larry has regrown every missing leg
2:55not because the system is kind
2:57but because it is actually a functional ecosystem
3:01and provides enough hiding space in plants
3:03for animals to recover
3:05I introduced dwarf crayfish for one key role
3:08to control the guppy population
3:11they should in theory
3:12eat the young disabled fish
3:13that sometimes hatch after inbreeding occurred
3:16and thus lead to a natural population control
3:22the predators don't choose favorites
3:24when Mister Krabs strikes
3:25it's sudden it's brutal and real
3:38for a moment
3:39the line between observation and intervention
3:41disappears
3:49this is the hardest part of ecosystem keeping
3:52knowing when to let nature act
3:54and when responsibility steps in
4:11I saved a Guppy Guppy Gooberd from horrible death
4:15he survived his predator
4:17and even parts of his tail grew back some weeks later
4:20but was Guppy Gooberd ready
4:22for the next threat to this ecosystem
4:27the next threat was not an animal
4:30it was not a threat within the ecosystem itself
4:33it was heat
4:35during the summer heatwave in Germany
4:37oxygen dropped
4:38metabolisms accelerated and even strong animals failed
4:43this wasn't imbalanced from within
4:46it was pressure from the outside world
4:48in just a few weeks the system lost its largest animals
4:51both Mexican dwarf crayfish
4:53and my beloved corydoras catfish
4:56as well as the Black Molly
5:02and recovery doesn't look gentle
5:04so on day 295 three black coolie loaches arrived
5:09silent eel like hunters
5:27and in a single flash a guppy fry disappears no drama
5:34no hesitation just regulation
5:42after that
5:42the snails exploded in numbers and were hunted
5:47algae spread and is grazed
5:51assassin snails otocinclus catfish
5:53each problem creates its own solution
5:57after 420 days this tank isn't perfect
6:01it will never be but it's a life balance
6:04here isn't a destination
6:05it's a constant negotiation between growth
6:08loss and adaptation a tropical river inside a glass
6:12reminding us that nature never stops adjusting
6:24the next stop in our Fish Room tour today
6:26is the Danube River Jar Paludarium
6:29a tiny world consisting of a land and water section
6:33but before we get to this ecosystem
6:34we need to go back
6:35to the largest river in the European Union
6:39on a quiet Saturday morning
6:41the city is only just waking up
6:43from a bridge over the Danube
6:45the first thing you notice is noise
6:50a tractor passing by heavy and loud
6:53but once it fades the river takes over
6:56wide calm
6:58almost effortless birds calling in the distance
7:01ducks and geese drifting across the surface
7:04standing here you feel the scale of it
7:07not just as a river
7:08but as a system that stretches nearly 2,900 kilometers
7:12which is 17 miles across Europe
7:15and somewhere inside all that water
7:18countless smaller worlds are hidden
7:20just a short drive away
7:22one of the Danube's side lakes tells a different story
7:38the lawn nearby is clearly shaped by people
7:41but beyond it nature quietly reclaims control
7:45rain from earlier that morning still hangs in the air
7:48everything is damp and alive
8:04at the shoreline a frog sits motionless
8:06so perfectly camouflaged among algae and plants
8:10that it almost disappears
8:12it's a reminder that life doesn't retreat
8:14when humans arrive it adapts
8:16hides and continues
8:19below the surface the lake reveals itself fully
8:22plants sway gently algae coats submerged branches
8:26tiny organisms move invisibly through the water
8:29already building and maintaining an intact ecosystem
8:32from here only a small fragment is taken
8:36bit of moss a few plants and some rocks
8:40and a scoop of water mixed with dirt
8:47it doesn't look impressive
8:48but it's full of micro fauna
8:50the invisible pioneers
8:51that make everything else possible
8:57the forest nearby provides the rest
8:59a fallen stick will one day break down into food
9:03dead leaves layered with fungi and microbes
9:06a bright green patch of moss
9:08a pioneer plant
9:09holding moisture and sheltering tiny life
9:12only a small piece is taken
9:14leaving the rest untouched
9:16everything connected already belongs to a larger cycle
9:36back home the jar waits
9:38empty and clean
9:40this jar was once a wedding gift for
9:42my wife
9:42Selena and me from my friends Chris and Charlotte
9:46and now it's a glass boundary for a living system
9:50stones from the lake
9:52form a natural barrier between land and water
10:03a branch adds structure and scale
10:06soil fills the gaps anchoring plants and feeding roots
10:15Moss is laid down like a soft forest floor
10:18still damp from the woods
10:22sand settles into a pale shoreline
10:24slowly the jar stops feeling like an object
10:28and starts feeling like a place
10:47when the lake water is finally added
10:49the jar clouds over for a moment
10:52nothing is visible anymore
11:01but by the next morning
11:02the water cleared and the hidden world appears
11:06tiny specs dart through the water column
11:08copepods among the most abundant animals on earth
11:12barely visible yet essential
11:15grazing on algae and bacteria
11:17turning invisible matter into life
11:19and becoming food for something else
11:22without them this system wouldn't last long
11:25at night the jar changes again
11:28with the light on movement fills every corner
11:32among the copper pots something else appears
11:37a planarian worm flat
11:40slow and unsettling
11:42a predator and scavenger
11:43capable of regrowing its entire body if cut apart
11:47almost immortal in its own way
11:50sharing the same space is a mayfly nymph
11:52one of the most ancient insects on earth
11:55it may live underwater for months or years
11:58quietly grazing and cleaning
12:00only to emerge as an adult for a single fleeting day
12:04two extremes of survival
12:05side by side in the same glass world
12:10about a week later the ecosystem shifts once more
12:13the water level is lowered to expand the land section
12:16and the glass is clean
12:19and the new inhabitants arrive
12:42rubber ducky isopods brightly patterned
12:45slow moving and highly sensitive to their surroundings
12:48they step carefully through moss and over bark
12:51sensing moisture vibrations and chemical traces
12:55they don't rush they explore
12:57grazing on biofilm
12:58decomposing leaves and microorganisms
13:01they take on the quiet role of recyclers
13:03turning decay into continuity
13:07the contrast is striking
13:08large isopods moving deliberately above water
13:12while almost microscopic copepods are flashing below
13:16predators grazers
13:17decomposes all present
13:19all connected inside a single jar
13:23this is what the Danube looks like
13:24when you shrink it down not a river
13:26but a network of interactions
13:29not a scenery but process
13:31a reminder that even the smallest container
13:34can hold an entire world if you give it time
13:37patience and a chance to unfold on its own
13:42before we head to our next story
13:47let's have a brief look at three other projects
13:49within the Fish Room
13:50that didn't make it into the final stories of the year
13:53the first one is the Scutcher
13:56which is an aquatic world
13:57that has been closed for more than a year now
14:00let me know in the comments
14:01if you want an update on that ecosystem
14:04then we have another closed jar ecosystem
14:06that holds springtails ginger plants
14:09moss and Hydrophila corimbosa plants
14:12which are aquatic plants
14:13that grow for a year now without water
14:17also going one level lower
14:19we have the Neocaridina shrimp colony
14:22a breeding tank
14:23that holds multiple generations of Neocaridina
14:25davidi shrimp
14:27lovely
14:28tiny grazers that keep reproducing almost every week
14:32and then we move to our next short story
14:35the tank that almost failed
14:4286 days ago this tank didn't exist
14:47it was just an empty glass box
14:48and a risky idea
14:50to recreate a small piece of the Amazon River
14:53inside my fish room what followed wasn't a smooth build
14:57it was algae loss a mystery baby fish
15:01and a decision that could have destroyed everything
15:06I wanted the scape to feel ancient
15:08like it had existed long before I touched it
15:11heavy stones formed the river's backbone
15:13a single forest branch became the Anchor Point
15:16I got this branch from a trip to the Neckar river
15:26and just added it to the tank straight
15:28no chemical treatment or cleaning required
15:31and underneath it all
15:32expanding foam locked the structure together
15:45almost invisible but essential
15:48within days life took hold
15:50plants rooted water cleared
15:52the tank woke up it looked stable
15:55almost too perfect
15:58then came the fish Adolfos corydoras
16:01catfish on the sand platy fish near the surface
16:06and apistogramma dwarf cichlids
16:08claiming their territory
16:11last but not least a tight school of glowlight tetras
16:14lighting up the centre
16:35two days later I spotted something I hadn't planned for
16:40a tiny baby fish no one knew where it came from
16:44was it a platy fry or a ciclid offspring
16:47in a tank of predators its survival felt unlikely
16:51but the real danger hadn't even started yet
16:55several days later the tank turned
16:57algae crept across the hardscape
16:59then exploded
17:01filamentous algae wrapped itself around the centerpiece
17:04smothering the plants I was most proud of
17:06and then I saw it a coridoras
17:09lifeless on the sand
17:11that moment changes how you look at a tank
17:14it stops being art and becomes responsibility
17:17I reacted fast water change
17:19algae removal feeding adjustment
17:22but then
17:22I made a choice that most aquarists warn against
17:27I overfed every day for weeks
17:30I knew it could trigger more algae
17:32more snails more instability
17:34but losing another corrie wasn't an option
17:37and while I was watching the bottom
17:39something was silently taking over the surface
17:43by day
17:4360 floating plants blocked almost all light from above
17:47so I removed them completely
17:50and underneath no disaster
17:52no collapse the plants were thriving
17:54the fish were strong and the mystery baby fish
17:57it survived not just that one
18:00but four juvenile platies
18:02now swam confidently through the tank
18:04what almost failed
18:06ended up becoming one of the healthiest ecosystems
18:08in my fish room
18:10this tank didn't succeed because everything went right
18:14it survived because I let it struggle
18:16and Learned when not to interfere
18:19and that's exactly why it deserves a place in my 2025
18:22Top Fish Room stories
18:33last but not least we move to the Aquatic Insect Show
18:36this was the smallest project budget wise
18:39but attracted by far
18:40the largest audience on my YouTube channel
18:42before we check the 139 day old Necker Bowl ecosystem
18:47we need to go back to Day Zero
18:51most people walk past places like this every day
18:54without ever realising
18:56what lives just below the surface
18:58a quiet pond still water
19:01nothing that looks extraordinary
19:03but hidden inside this muddy edge
19:05is a complete ecosystem predators
19:08grazers scavengers
19:10all locked in balance
19:12every scoop of pond soil
19:13looks like nothing more than dirt
19:16but each one is a seed
19:18inside it are animals too small to see
19:21eggs waiting to hatch and lives already in motion
19:31a small layer of recycled substrate
19:33is topped off with play sand
19:35which is a cheap substrate alternative
19:45this is followed by buck bean plants
19:47and yellow flag Iris plants
19:54then the pond water is slowly added
19:57using a plastic bag
19:58to prevent unnecessary disturbances
20:01this bowl isn't built it's resurrected
20:2810 days later and the water stirs and something moves
20:34a mayfly nymph an ancient creature
20:36whose life is almost entirely spent underwater
20:39it grazes silently recycling the cane plants
20:43breathing through delicate leaf like gills
20:46shaping the system
20:47without ever drawing attention to itself
20:50this is what most ecosystems are built on
20:53quiet workers doing invisible jobs
20:56which sadly probably also applies to our society
21:03even here space is negotiated
21:13a bladder snail swings its shell
21:15and the mayfly retreats no violence
21:18just boundaries these snails may look insignificant
21:22but they are essential cleaning surfaces
21:24recycling nutrients
21:25and quietly prepare the system for what comes next
21:28what some people call pests
21:30are often the backbone of stability
21:32bladder snails not pest snails in my opinion
21:37but every ecosystem has a hunter
21:39and here it's clearly the dragonfly nymph
21:42perfectly still almost invisible until it strikes
21:53it's extendable jaw fires forward
21:58faster than the human eye can follow this ball
22:02it is definitely the APEX predator
22:06at normal speed everything seems normal
22:11but slow the footage down or speed it up
22:14and the water comes alive
22:17microorganisms drift larvae twitch
22:20leaves dissolve into food
22:22a city of movement hidden in plain sight
22:25this bowl doesn't need feeding
22:27a single fallen leaf becomes food
22:30which becomes life which feeds something else
22:34the most fascinating part isn't
22:36that this exists in a glass bowl
22:38it's that it exists everywhere
22:42if you like this collection of my 4 favourite builds
22:45and stories of the year 2025
22:47please subscribe to this channel
22:49and comment below with your favourite project
22:52if you want to support my work here
22:54please consider joining the Tetra Gang
22:56or the Guppy Gang
22:57it's the best way to support my work here
22:59directly on YouTube with a monthly paid membership
23:02it costs less than a coffee
23:04and comes with exclusive perks
23:05such as custom emojis custom badges
23:08early access to new videos and for the higher tier
23:11even access to members only content
23:14thank you so much for watching

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