Your tank deserves
an audience
that gets it.
Planted obsessives. Cichlid breeders. Nano panickers at midnight. Shoal is where aquarists who actually care find each other.
Breathtaking Aquascapes
Every image is a member's living room, basement, or study — a world in glass that took months to grow. Click any tank to meet the keeper.
Iwagumi Reimagined
Siosaia K. — Portland, OR
Siosaia Kaulima
Portland, OR · 120L ADA 60-P
“Took me 4 months to grow the HC carpet in from tissue culture. The rasboras shoal so tight under the Rotala arch I sometimes lose count of them.”
Species
Parameters
Equipment
- ADA CO2 System
- Twinstar 600E LED
- Eheim 2215 canister
Rio Negro Blackwater
Fatima A. — Austin, TX
Fatima Al-Rashid
Austin, TX · 200L custom rimless
“I import catappa from Malaysia. The tannins turn the water the exact color of Rio Negro. Cardinals look like they have neon signs installed in them.”
Species
Parameters
Equipment
- Catappa leaves
- Alder cones
- Fluval FX4
- Chihiros WRGB II
Dutch Garden Maximalism
Tomasz W. — Chicago, IL
Tomasz Wierzbicki
Chicago, IL · 400L 150cm Dutch
“Dutch style is dying. I refuse to let it. Every plant row is a conversation about color theory and negative space. It is gardening at 1:1 scale.”
Species
Parameters
Equipment
- DIY CO2 reactor
- Odyssea T5 HO ×4
- Eheim Pro 4+ 600
Cherry Shrimp Micro-World
Mei L. — Seattle, WA
Mei Lin
Seattle, WA · 20L Fluval Spec V
“I counted 14 berried females last week. The colony has tripled since I joined Shoal and got advice on GH/KH ratios from Marcus in the forums.”
Species
Parameters
Equipment
- Fluval Spec stock filter
- Stingray 2 nano LED
- Seachem Flourite substrate
Reef — The Long Game
David O. — Miami, FL
David Okafor
Miami, FL · 500L SPS-dominant reef
“5 years and $12,000 in. I have cried over this tank twice. The Acropora I nearly lost to RTN is now the biggest coral in the system.”
Species
Parameters
Equipment
- Red Sea Reefer 525XL
- Radion XR30 ×3
- Apex controller
- Calcium reactor
Amazon Stream Biotope
Ananya S. — Houston, TX
Ananya Sharma
Houston, TX · 300L biotope
“Discus are the divas of the fish world. They sulked for 3 weeks when I added the angelfish. Shoal members talked me through the social hierarchy adjustment.”
Species
Parameters
Equipment
- RO/DI unit + remineralization
- Fluval FX6
- Fluval Plant 3.0 LED
Rare Fish.
Week by Week.
Members document every spawn, every setback, every shrimplet. The obsession, unfiltered.
Double Red Cockatoo Dwarf Cichlid
Apistogramma cacatuoides
Spawning
Female entered coconut cave. 60–80 eggs counted on cave ceiling.
Wrigglers
Eggs hatched. Female fanning wrigglers. Male patrolling perimeter. First aggression toward otocinclus.
Free Swimming
47 fry counted free swimming. Female herding tightly. Moved to 40L grow-out.
Juveniles
Color developing. Males showing orange dorsal fin extensions. 38 survivors to juvenile stage.
“Third successful spawn this year. The female is an absolute tyrant — she evicted the male from his own territory on day 4.”
Crystal Red Shrimp (S-Grade)
Caridina cantonensis
Berried Female
Found first berried female. Eggs visible under saddle. Moved to dedicated breeding tank.
Eggs Developing
Eggs darkening. Can see eye spots with macro lens. Female fanning constantly.
Shrimplets
12 shrimplets released. Tiny white and red. Living in java moss for first weeks.
“CRS are unforgiving. One TDS spike and they abort the eggs. I check parameters twice daily during berry. The S-grade coloration on these shrimplets is stunning.”
2 AM Panic.
Answered in Minutes.
8 min
Avg. first response time
Ammonia spike 4 ppm — fish gasping at surface — HELP
Tested water 20 mins ago. Ammonia 4 ppm, nitrite 0.5. Fish are at the surface. Just did 50% WC. What else can I do right now? I have Prime.
— Priya N.
Dose Prime immediately — it detoxifies ammonia for 24-48 hours even though it won't reduce the reading. Dose for the full tank volume, not just the water changed.
Also check your pH. Ammonia toxicity is exponentially worse above pH 7.5. If you're below 7.0 you have more time. What's your pH?
pH is 6.9. Dosed Prime. Fish seem slightly better already. Doing another 30% WC now.
Good — pH 6.9 helps. Keep dosing Prime daily for 3 days. Your cycle probably crashed. Add Seachem Stability or Fritz Turbo Start tomorrow. You're going to be fine.
Betta flaring at mystery snail for 3 hours straight — normal?
It's 2am and I can't sleep watching this. My betta has been full-flare at my mystery snail for literally 3 hours. The snail is just vibing. Is this stressing him out?
— Juno R.
Ha! Classic betta behavior. He sees the snail's "antennae" and antenna movement and interprets it as a rival. It's annoying but harmless for the betta — they have the attention span of... well, a fish.
The snail is 100% unbothered. Mystery snails have a protective operculum and can just seal up and ignore the drama. Your betta will get bored in a day or two.
Okay I love this community. Going to sleep now. Thank you both 😭
CO2 diffuser not making bubbles — whole scape is melting
Woke up and plants look pale and stem plants are going limp. CO2 bubble counter shows nothing. Checked the tank — diffuser has white calcium buildup. Is this fixable tonight or do I need new gear?
— Tomasz W.
Soak the diffuser in diluted white vinegar (50/50 with water) for 30-60 minutes. Calcium deposits dissolve completely. Rinse thoroughly before reinstalling.
Also check your check valve — they fail silently and can back-siphon water into your CO2 regulator. If the diffuser fixes it, great. If not, the regulator solenoid may need cleaning.
Vinegar soak worked perfectly. Bubble rate back to 2bps. Plants should recover in 48 hours. You guys saved my 4-year-old Dutch scape.
Hands in Buckets.
Faces Lit by Tank Light.
84 local chapters across North America. Swap meets, tank tours, breeding auctions. The internet community made physical.
Pacific Northwest Aquarium Society — Spring Swap
Bay Area Planted Tank Club
AquaFest Chicago 2025
Texas Cichlid Association
Book Your
Welcome Dive.
A community moderator walks you through profile setup, tank logging tools, and matches you to your nearest local chapter. 15 minutes. No pressure. Just fish talk.
Tank Profile Setup
Log your species, parameters, and equipment. Build your tank's identity.
Breeding & Growth Logs
Document spawns, fry progress, and parameter trends with our logging tools.
Local Chapter Matching
We'll connect you to the nearest active chapter and upcoming swap meets.