Does the sera blue sky support algae growth, and is it suitable for planted aquariums?
Which crabs are suitable for aquariums?
Pressure filters in saltwater?
Are clam and snail shells harmful in an aquarium?
sera ectopur: Application and tolerance
Does nocturnal LED lighting disturb sleeping fish?
Is there a special sera salt for livebearers?
Does a UVC clarifier harm useful bacteria?
Can fish change their gender?
Gluing rocks and decoration with silicone
What are "cold water" and "warm water"?
Socialization of Discus
How many angelfish for a 300 liter (66 US gal.) aquarium?
Which size for a beginner's tank?
Setting up a low-current tank for gouramis
Can I keep terrapins and fish together?
Fish stock for a Lake Malawi aquarium / Slimy layers
White spots on the fish?
Which CO2 unit for a 60 cm (23.6 in.) aquarium?
Neon tetras with bloated bellies
What are the consequences of very high silicate levels?
Peat (sera super peat) against algae?
Can I keep a tortoise in a discarded aquarium?
Guppy-like fish with orange and black pattern - which species is this, and how can I keep them? (Endler's livebearer)
No water changes while being away for three weeks? / Preparing food for vacation substitute
Breeding Platies / Fish stock questions
Should I combat trumpet snails in the aquarium?
Can I use flintstone in an aquarium?
How large do Clown Loaches grow?
How is a fluorescent tube constructed and what do you have to observe during operation?
Is it possible that no elevated nitrite levels can be detected a few days after a nitrite intoxication?
Fish as snail removers?
What can I do against cloudiness?
Black Mollies have protruding eyes and skin slime
How can I help a fish with unspecific symptoms?
Angelfish behave apathetically
Water change rate and filter cleaning
sera costapur: Application tips
White worms in the aquarium
Amyloodinium (Oodinium) upon adding new fish
Brown layers on plant leaves / Diatoms
Blue-green algae / Cyanobacteria
Available water is strongly polluted with iron
How do I carry out a proper quarantine?