How much sera floredepot is required for a 150 liter aquarium, and how long do the nutrients last?
Piranhas in an aquarium
Questions about stocking a new 200 liter aquarium
Replacing an aquarium with a bigger one
Setting up an aquarium anew while it is in operation
Veiltail goldfish in an aquarium
What to do in case of floating algae in the aquarium?
White worms in the aquarium
Which filter for a 30 liter shrimp tank?
Problematic fish stock / Can fry stay with their parents?
Which fish can be kept together with Fighting Fish?
sera CO2 reactor: Connection and installation
Biofilm on the surface
Keeping Spinycheek Crayfish (Orconectes limosus)
Angelfish behave apathetically
Conditioning saltwater for shrimps
Brown layers on plant leaves / Diatoms
How can I hibernate goldfish living in a pond indoors?
Sand and gravel in combination? / How much sand is required?
Can I keep male Guppies without females?
Water change rate and filter cleaning
How often should I clean the filter media?
Newly added plants turn yellow / Leaves decompose
Which pump is suitable for the sera gravel cleaner?
Guppy-like fish with orange and black pattern - which species is this, and how can I keep them? (Endler's livebearer)
How can I catch fish that cannot be caught with a net?
How large do Ancistrus catfish grow?
Tiger barbs nibble at fins of Guppies
No water changes while being away for three weeks? / Preparing food for vacation substitute
Are fertilizers harmful for shrimps?
Male Platy is aggressive against members of its own kind
Water smells bad
Amyloodinium (Oodinium) upon adding new fish
Air bubbles at the surface and cloudiness after setup
Pressure filters in saltwater?
Worms and Hydra
Angelfish have damaged fins after transfer
UV protection foil for algae prevention?