How can I lower the KH value?
Can I also use tap water for preparing saltwater?
What to do in case of floating algae in the aquarium?
Amyloodinium (Oodinium) upon adding new fish
Guppy-like fish with orange and black pattern - which species is this, and how can I keep them? (Endler's livebearer)
Plants do not grow but dissolve
Trigonostigma (formerly: Rasbora) espei are courting
Worms and Hydra
Skin changes during treatment against Costia/Ichthyobodo
Ancistrus catfish has large white blotches
Severe infection of goldfish
Are Butterfly Cichlids suitable predators for Guppy babies?
Is it normal that Altolamprologus calvus grow very slowly?
How to carry out a treatment against gill flukes
Black Mollies have protruding eyes and skin slime
Female Pearl Gourami is strongly bloated on one side
White spots on the fish?
Fish become ill / Root smells bad
Dwarf Gouramis are courting