Frequently asked questions

Freshwater Care

Can I use sera bio nitrivec in a stocked aquarium?

Hello, this is of course possible, e.g. during the water changes mentioned on the label. However, you can also just add it into the filter as to improve the biological breakdown...

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...

Marine water

Live rock from the Mediterranean Sea: Which salinity?

Hello, Concerning "aeration/temperature":Yes, I agree. Concerning "salinity":You can use the same salinities as they are usual in reef tanks, everything between 3.3 - 3.6% is OK...

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,...

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