Frequently asked questions

Freshwater

Setting up a low-current tank for gouramis

Hello, Concerning "pond soil":I generally do not recommend using soil, including pond soil, in aquariums.Some kinds of soil are very rich in nutrients (however, this rather applies...

Freshwater Diseases

Female Pearl Gourami is strongly bloated on one side

Hello, possible causes include a swim bladder injury, an ileus or a tumor, possibly also a cyst. Sudden occurrence (i.e. not a continuing development of the symptoms)  would make a...

Freshwater

Does "ironwood" contain iron that can be taken up by plants?

Hello, no, at least not in larger amounts than other kinds of wood.The common name refers to the high hardness and the high density of the wood. Best regards sera GmbHDr. Bodo...

Freshwater Care

Does sera blackwater aquatan contain formaldehyde?

Hello, yes, this is indeed the case - sera blackwater aquatan does not contain any formaldehyde. Best regards sera GmbHDr. Bodo Schnell

Freshwater

Replacing an aquarium with a bigger one

Hello, luckily, it is not that bad: Empty the old tank as far as possible, collect and keep the old water (!). Depending on the filter, operate it on a bucket of water as to...

Freshwater

First fish stock for a 60 centimeter (23.6 in.) aquarium

Hello, To 1.:6 guppies are alright, however you should in time make sure there are takers for the numerous offspring. To 2.: this (of course) depends on the species. The common (Neo...

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