Frequently asked questions

Freshwater Care

Which fertilizers are suitable in case of diminished plant growth?

Hello, if it is really caused by lacking minerals, sera florena (liquid) is recommended for stem plants, sera florenette (tablets) for plants with strong roots such as Echinodorus sp...

Freshwater Fish

Which fish can be kept together with Fighting Fish?

Hello, calm and non-aggressive fish are suitable, e.g. harlequin rasboras or most common characin species, armored catfish, loricariids, coolie loaches etc. Better do not add...

Freshwater Fish

Which fish for reducing the number of Guppy fry?

Hello, almost all characins sized about 6 cm are suitable, e.g. from the Hyphessobrycon genus. Dwarf cichlids (mainly Apistogramma spp.) will also prey on the fry, some species are...


Which are suitable sand grain sizes?

Hello, Concerning "sand 0.5 mm":no, that is alright. However, it must be round grained (not crushed sand), especially if there are fish in the aquarium that live on the bottom or...

Freshwater Invertebrates

Which crabs are suitable for aquariums?

Hello, "Purple arm crabs", Pseudosesarma moeshi, or closely related species are probably the most common species offered in the trade. However, it is is advisable to add some salt...

Freshwater Technical equipment

Which fluorescent tube in the front position?

Hello, generally, you can position the lamps mainly according to your personal taste, but exactly this combination is indeed an excellent standard setup. Background: the plants then...

Retailer search