Frequently asked questions

Freshwater Diseases

Angelfish has damaged fins

Hello, no, I do not - to shorten the fins is advisable only in very few exceptional situations (Lymphocystis in the outer fin zones). Feeling in the fins is unlikely as long as the...

Freshwater Diseases

Angelfish have damaged fins after transfer

Hello, 4 angelfish in a 100 liter (22 US gal.) tank: this will not be successful in the long term! Just 2 angelfish already require at least 200 liters (44 US gal.) - permanently...

Freshwater Fish

Are Butterfly Cichlids suitable predators for Guppy babies?

Hello, yes, they would - provided the water parameters are suitable (soft, slightly acidic, very good water hygiene). Butterfly cichlids are very sensitive concerning these matters. ...

Freshwater

Are clam and snail shells harmful in an aquarium?

Hello, there are no objections (except that it may appear optically unnatural, but this is a mere question of taste and does not bother the fish), provided the shells are free from...

Freshwater Invertebrates Care

Are fertilizers harmful for shrimps?

Hello, they contain only such minimal traces of copper that there is no danger even for very sensitive shrimps and other invertebrates. sera florena and sera florenette are...

Freshwater Care

Available water is strongly polluted with iron

Hello, there is actually only the possibility of completely deionizing the water.Preferably with an ion exchange system rather than a reverse osmosis (R/O) unit, since iron tends to...

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