Frequently asked questions

Freshwater Diseases

How should I dose sera baktopur when there are also healthy fish in the tank?

Hello, this is no problem. The fish may - as is the case with all treatments - feel slightly unwell, but will not be harmed. You should definitely add the proper dosage, as too low...

Freshwater Diseases

How do I proceed when the treatment with sera pond omnipur is finished?

Hello, it is advisable to filter through active carbon for 1 - 2 days for removing the treatment remainders, even if the water tint becomes paler after a while due to the influence...

Freshwater Care

How are fertilizer tablets optimally applied?

Hello, To 1.:it is not necessary to dig them in. It is sufficient to place the tablets near the roots or slightly push them into the gravel.They usually quickly stop doing so once...

Freshwater Care

How does sera aquatan work against heavy metals?

Hello, the basic process is called "chelation" (complexation with polydentate ligands), which encapsulates the heavy metal ions with a kind of "protective shell" and thus makes them...

Freshwater Care

How much sera floredepot is required for a 150 liter (33 US gal.) aquarium, and how long do the nutrients last?

Hello, the sera floredepot layer should be about 2 cm (0.8 in.) high.This would be about 8 liters (1.76 US gal.) or 13 kg (28.7 lb.) for an aquarium bottom area of 100 x 40 cm (39.4...

Freshwater Food

How much water change in a 60 cm (23.6 in.) aquarium / How much food for catfish?

Hello, feeding catfish this way (sera Catfish Chips are, for instance, well suited) is alright, if (!) there is enough periphyton (algae etc.) and wood for rasping off. However, the...

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