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...

Freshwater Technical equipment Care

Conductivity of R/O water

Hello, 60 µS/cm are indeed rather high for R/O water, this might indicate a mistake while measuring (e.g. miscalibration), dirty water containers or even a faulty R/O unit! A...

Freshwater Technical equipment

Fluorescent tube does not work when switching it on

Hello, please check whether the lamp and the starter sit in their fixtures correctly − you may slightly turn the lamp to do so. It happens rather often that the lamp sits poorly due...


Air bubbles at the surface and cloudiness after setup

Hello, please be patient, this will stop by itself. The cloudiness is usually caused by fine gravel or sand particles and will disappear after a few days. It is immediately after...

Freshwater Fish

Mollys apparently do not multiply

Hello, I am rather certain that the Mollies already reproduced as well. However, the fry are usually born at night and get eaten before the next morning. Therefore, it is possible...

Freshwater Fish

Breeding Platies / Fish stock questions

Hello, Concerning "breeding container":this should best not be done at all - these containers are simply too small for adult fish.However, they are well suited for raising the fry....

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