Frequently asked questions

Freshwater Fish

Can I keep Dwarf Livebearers (Heterandria formosa) together with Platies and Corydoras?

Hello, there are no objections against small Corydoras (Corydoras habrosus, C. hastatus and C. pygmaeus) −  however, the aquarium should be abundantly planted and provide a thicket...

Freshwater Care

Algae problems with very low nitrate and phosphate levels

Hello, this phenomenon is not that unlikely at all and occurs rather frequently, especially in case of floating algae. The reason is quite simple:the algae literally take up the...

Freshwater Care

Using the sera nitrite-Test

Hello, Concerning "sequence of liquids":the test will then not function properly. Concerning "different colors":this is due to not using the test kit correctly. Concerning "correct...

Freshwater Care

Using sera aquatan if water changes are conducted without a bucket

Hello, there is a very simple solution:distribute the corresponding conditioner amount after having removed the "old" water, then top up with fresh water. This will always protect...

Freshwater Pond Fish

Can I keep aquarium fish in a pond during summer?

Hello, plants growing up to the surface (floating plants and/or plants that reach the surface) should be present especially near the banks as to provide shelter (also from birds!). ...

Freshwater Care

Conditioning during water changes / Which values should be checked, and when?

Hello, Concerning "water conditioning":sera aquatan (binds copper and protects the fish against chlorine, among others) is indeed advisable with every water change. Dosage as per the...

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