Frequently asked questions

Freshwater Technical equipment

Is it possible to use sera floredepot together with an undergravel heater?

Hello, no, there are no objections! Best regards sera GmbHDr. Bodo Schnell

Freshwater Care Invertebrates

Completely new setup after algae trouble? / Snails in the aquarium

Hello, I do not recommend a completely new setup - this would only destroy useful biological systems that build up slowly. It takes about 1 - 2 years until an aquarium is really...

Freshwater Diseases

Can fish die even several days after a nitrite intoxication?

Hello, the nitrite level should by all means checked daily (twice if possible) - sera toxivec and sera bio nitrivec provide detoxification and biological activation, respectively. B...

Freshwater Fish

Life expectancy of Corydoras catfish

Hello, this might indicate an intoxication, however it would then be likely that other fish were also affected. The life expectancy of most Corydoras species is about 8 - 10 years,...

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 Care Technical equipment

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...

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