Frequently asked questions

Freshwater Fish

A few questions about Spot Finned Spiny Eels (Macrognathus aculeatus)

Hello, Concerning "pair-housed":there are no objections in an appropriately large [above 300 liters (66 US gal.)] and well structured aquarium with plenty of hideaways near the...

Freshwater Fish

Keep Firemouth and Convict Cichlids (Thorichthys meeki/Cryptoheros nigrofasciatus) together?

Hello, "exactly the same" is maybe a bit too strong, but at least they originate from similar biotopes. The species do not get along very well with each other (if both are in the...

Freshwater Technical equipment

Filter performance goes down very quickly, water becomes cloudy

Hello, at least the biologically active main filter media should be cleansed as rarely as possible. The minimum time before the biologically active filter compartment needs to be...

Freshwater Diseases Care

Fish become ill / Root smells bad

Hello, Concerning "reoccurring disease":frequently reoccurring disease outbreaks almost always indicate a water problem - unsuitable values (e.g. too hard) or increased water...

Freshwater Technical equipment

Does the sera blue sky support algae growth, and is it suitable for planted aquariums?

Hello, Concerning "planted aquariums":this is actually possible. However, it is mainly used for aquariums with fish from open water (e.g. East Afrikan rift lakes) due to its color. ...

Freshwater Fish

Questions about breeding Colisa lalia (Dwarf Gourami)

Hello, Concerning "nest building/feed spot":this sounds good - I simply recommend feeding in another spot, at least for a while! Concerning "separate tank":none of which, just let...

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