Frequently asked questions

Freshwater Diseases

Neon tetras with bloated bellies

Hello, females ready to spawn (which is rather uncommon in aquariums) do not become apathetic, therefore it sounds more like a disease. Of course, this cannot be determined without...

Show complete answer
Freshwater Fish

Neon tetras, butterfly cichlids and shrimps together? / Filter media

Hello, Concerning "desired stock":this is indeed possible, but you should add a considerably larger group of the shrimps (see below). An 80 cm (31.5 in.) tank would be even better...

Show complete answer
Freshwater Fish

New gourami attacks older ones

Hello, this raises the suspicion that it possibly is not a female but a juvenile male! In case of open injuries, a mild anti-bacterial treatment (liquid sera baktopur) makes sense...

Show complete answer
Freshwater Fish

Newly added Cardinal Tetras are pale

Hello, Concerning"pale Cardinals/blackwater aquarium":this is indeed possible, and it can also simply be due to fright when transferring them. This should then become better in two...

Show complete answer
Freshwater Care

Newly added plants turn yellow / Leaves decompose

Hello, this is absolutely normal with many plants - they also need to adapt. Especially the species with large leaves (e.g. Echinodorus spp., Anubias spp.) are originally swamp...

Show complete answer
Freshwater Technical equipment

Nitrate breakdown with sera siporax: What kind of filter is suitable?

Hello, an external filter is possible. The filter type isn't that important - both internal and external setups will work just fine. The setup is pretty simple: the first step is...

Show complete answer
Retailer search
l