Frequently asked questions

Freshwater Care

What is the best way to attach moss to a root?

Hello, this is only for a while - you can remove (cut and pull it out) the thread after a few weeks when the moss has grown on! I do not think there will be any problems if you...

Freshwater Diseases

What is the difference between sera baktopur and sera baktopur direct?

Hello, they are completely different products, i.e. other active agents. While sera baktopur is an active substance solution, sera baktopur direct is a tablet - each as an addition...

Freshwater Care

What to do in case of brush algae?

Hello, the following approach is effective in the long run:regulate the ratio betwen nitrate and phosphate in a way that the plants are just sufficiently provided with nitrogen and...

Freshwater Diseases

What to do in case of dropsy?

Hello, dropsy (bloated belly) is in fact not the disease itself but the symptom of a severe internal infection (mainly of the kidney). A treatment can be carried out with sera...

Freshwater Care

What to do in case of floating algae in the aquarium?

Hello, reducing the nitrite value is of course good, since nitrite is very toxic for fish. However, it has nothing to do with algae growth. As an immediate measure, you can bind the...


Which are suitable sand grain sizes?

Hello, Concerning "sand 0.5 mm":no, that is alright. However, it must be round grained (not crushed sand), especially if there are fish in the aquarium that live on the bottom or...

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