What to do in case of dropsy?
Can fish die even several days after a nitrite intoxication?
Add hatchetfish to existing fish stock?
Position of the sera F 700
Nitrite levels remains at 0.3 mg/l for a longer time
Fish stock for a 60 cm aquarium
How are fertilizer tablets optimally applied?
Hornwort floating at the surface?
How can I regulate the suction with the sera gravel washer?
Severe infection of goldfish
Setting up an aquarium anew while it is in operation
Are Butterfly Cichlids suitable predators for Guppy babies?
How can I help a fish with unspecific symptoms?
Nitrite level remains very high for months
sera baktopur: Application tips
"Moss balls" / Food amount
Guppy-like fish with orange and black pattern - which species is this, and how can I keep them? (Endler's livebearer)
Live rock from the Mediterranean Sea: Which salinity?
Shell dwelling cichlids have become more aggressive
Black Widow Tetras (Gymnocorymbus ternetzi) spawned
Fish stock for a Lake Malawi aquarium / Slimy layers
Newly added Cardinal Tetras are pale
Should I leave angelfish eggs with the parents, or should I raise the fry separately?
White worms in the aquarium
Trigonostigma (formerly: Rasbora) espei are courting
Ulcer on a dwarf gourami
Black Mollies have protruding eyes and skin slime
Does sera phosvec bind phosphates permanently, or can they get back in solution in the aquarium?
Conditioning saltwater for shrimps
Plants do not grow but dissolve
Which food for small and finicky fish?
Which food for angelfish?
Worms and Hydra
Can fish change their gender?
Which food for mangrove crabs?
Does a power outage cause harm?
Blue-green algae / Cyanobacteria
How can I lower the iron level?
Replacing an aquarium with a bigger one
Angelfish have damaged fins after transfer
Brown layers on plant leaves / Diatoms
Total hardness for keeping Koi