Frequently asked questions

Freshwater Diseases

Neon tetra floats helplessly at the surface

Hello, this is one of several possibilities which would, hoverer, require a longer case history (loss of appetite, no feces for a longer while, etc.). Possible other causes are: ...

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...

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...

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...

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...

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...

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