Frequently asked questions

Freshwater Fish

Kribensis (Pelvicachromis pulcher) attack older juveniles when there are new eggs

Hello, generally, the parents only want to chase away the older fry, but losses may indeed occur due to lacking space especially in a (too!) small tank if they cannot get out of the...

Freshwater Fish

Kribensis (Pelvicachromis pulcher) become pale upon transfer into a breeding tank

Hello, this is one of several possibilities, but there may also be other reasons (e.g. unsuitable water parameters, insufficient space, unsuitable setup, transfer stress etc.). These...

Freshwater Fish

Kribensis (Pelvicachromis pulcher) - male is aggressive towards the female

Hello, a sufficiently large aquarium (at least 80 cm, better 1 m length) with many places to hide (roots, caves, plants) are important in this case. A possible cause for this...

Freshwater Fish

Kribensis (Pelvicachromis pulcher): Questions about behavior and species they can be kept together with

Hello, yes, this is possible. Kribensis (Pelvicachromis pulcher) hardly ever dig, if at all. Mollies and also Platies are generally possible. However, Mollies often require/prefer a...

Freshwater Invertebrates

Snails: how many should I add, and how can I monitor and increase water hardness?

Hello, this is exactly the right attitude, snails are unfortunately too often considered a "pest", which they are not! Just add a few trumpet snails, their number will regulate by...

Freshwater Fish

Hoplosternum does not mingle with other members of its species

Hello, I understand it this way that the fish (except for the clamped fins) looked like this from the beginning and did not change its color in the meantime (fright coloration, skin...

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