Is another nocturnal switchoff required in addition to the seramic CO2 control unit?
Questions about stocking a new 200 liter aquarium
Can I use flintstone in an aquarium?
What to do in case of brush algae?
Worms and Hydra
Operating a CO2 system without nocturnal switchoff?
Neon tetras with bloated bellies
pH value remains below 6.5 even after a water change
Water smells bad
Is it possible that no elevated nitrite levels can be detected a few days after a nitrite intoxication?
Piranhas in an aquarium
Veiltail goldfish in an aquarium
Fish stock for a 60 cm aquarium
White worms in the aquarium
"Crystal Red" shrimps in a 25 liter aquarium
Can I keep a tortoise in a discarded aquarium?
Replacing an aquarium with a bigger one
Setting up an aquarium anew while it is in operation
Which CO2 unit for a 60 cm aquarium?
Does sera aquatan affect iron fertilization?
Does sera blackwater aquatan contain formaldehyde?
First fish stock for a 60 centimeter aquarium
Should I combat trumpet snails in the aquarium?
What to do in case of floating algae in the aquarium?