Fish Gasping in a CO₂ Planted Tank
Surface gasping with injected CO₂: drop checker yellow, O₂ crash lights-off, vs ammonia, ranked causes, emergency fix order, FAQ.
Article
Aquarium Snail Infestation: Cut the Food
Pest snails exploding in planted tanks: overfeeding, bladder/ramshorn control, assassins vs manual, ranked causes, fix order, FAQ.
Cherry Shrimp Losing Color: Fix the Fade
Neocaridina pale or clear: stress, diet, genetics, light, vs post-WC deaths, ranked causes, recovery order, FAQ.
Cherry Shrimp Dying After Water Change
Neocaridina deaths after WC: GH/KH/TDS shock, chlorine, copper traces, vs color loss, ranked causes, safe change order, FAQ.
Fin Rot Treatment: Stop the Melting Edges
Fin rot in freshwater tanks: ragged edges vs ich, ammonia stress, betta tails, ranked causes, clean-water fix order, FAQ.
Ich in a Planted Tank: Shrimp-Safe Fix Order
White-spot ich in planted aquariums: heat + salt limits, no copper with shrimp, quarantine vs display, ranked causes, fix order, FAQ.
Too Much Light in a Planted Tank: Algae & Melts
PAR too high for CO₂ and fertilizing: hair algae, BBA on edges, plant melt, photoperiod vs intensity, ranked fixes, FAQ.
CO₂ Aquarium Leak Check: Find the Hiss
CO₂ leaking from regulator, needle valve, or fittings: soap test order, cylinder math, drop checker still blue, ranked causes, FAQ.
CO₂ Drop Checker Color Meaning: Read It Right
Drop checker yellow vs green vs blue: wrong fluid, slow response, KH mismatch, ranked causes, calibration order, vs leak, FAQ.
Aquarium Heater Stuck On: Emergency Steps
Heater stuck on or not shutting off: cooked fish, thermostat fail, placement vs filter flow, ranked causes, cool-down order, FAQ.
Aquarium Filter Flow Too Strong: Calm It Down
HOB or canister blasting fish and plants: spray bar, baffle, turnover math, vs weak flow / not cycling, ranked fixes, FAQ.
Aquarium Filter Not Cycling: Fix Order
Filter not cycling after weeks: ammonia stuck, nitrite never appears, new media vs fish-in vs crash, ranked causes, fix order, FAQ.
Assassin Snail Care Guide (Clea helena)
Assassin snail (Clea helena): hunts pest bladder/MTS snails, sand substrate, not algae eater, vs nerite and mystery.
Mystery Snail Care Guide (Pomacea)
Mystery snail (Pomacea bridgesii): large colorful snail, lid required, calcium, plant-safe usually, vs nerite and assassin.
Nerite Snail Care Guide (Algae, Eggs, Stocking)
Nerite snail care: zebra/horn/tiger nerites, glass algae grazing, infertile eggs on hardscape, no breeding in freshwater.
Best Algae Eaters for Planted Tanks (Safe Crew)
Safe algae eaters for planted tanks: Amano shrimp, otos, bristlenose, nerite snails — what eats what algae, mature tank rules.
Best Nano Fish for Planted Tanks (Roundup)
Best nano fish for planted aquariums: neons, rasbora, corys, otos, CPD — stocking, tank size, and shrimp-safe picks.
German Blue Ram Care Guide (vs Angelfish)
German blue ram (Mikrogeophagus ramirezi): warm soft water, bottom pair, 60 L+, vs angelfish and corys.
Angelfish in Planted Tanks (vs Rams, Shrimp Risk)
Angelfish (Pterophyllum): tall body, 120 L+, eats shrimp, pairs territory, vs German blue rams and nano tetras.
Kuhli Loach Care Guide (vs Corydoras)
Kuhli loach (Pangio kuhlii): sand substrate, shy noodle fish, group of 6+, vs bottom cory cats.