Frequently asked questions

Freshwater Fish

Gender differences in Labidochromis sp. "Yellow"

Hello, Concerning "gender differences":The gender differences are hard to see in not yet fully grown specimens - the colors are a little more intense in adult males, and the pattern...

Freshwater Fish

Is there inbreeding in fish?

Hello, Concerning "inbreeding":yes, this occurs with virtually every animal species. Concerning "shoal from a pet store":A close relationship is rather likely at least if they are...

Freshwater Fish

Guppy-like fish with orange and black pattern - which species is this, and how can I keep them? (Endler's livebearer)

Hello, according to the description, they are rather certainly so-called Endler's livebearers (Poecilia wingei). The fish are very closely related to the well known Guppies and even...

Freshwater Diseases

Skin changes during treatment against Costia/Ichthyobodo

Hello,that may indeed be a sign of healing. The skin is damaged by the parasite ifestation - these spots look accordingly when the parasites have been removed. Before that, it was...

Freshwater Technical equipment

Internal filter sera F 400 - is it possible to redirect the water current?

Hello, the instructions for use can be downloaded from our web site, and of course we also e-mail them on request! The filter must indeed be completely submerged. You can redirect...

Freshwater Care Technical equipment

Is a CO2 reactor required for CO2 fertilization?

Hello, the reactor is not especially required for the control unit, but generally for CO2 fertilization. It ensures the CO2 dissolves completely in the aquarium water. The sera CO2...

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