Frequently asked questions

Freshwater

Sudden decrease of water quality and snail invasion

Hello, this sounds as if a dead animal (a fish or a larger snail?) is lying in the aquarium decomposing, which heavily pollutes the water. Generous (!) partial water changes are...

Freshwater Diseases

Swollen eye and abnormal swimming position

Hello, the fish eating normally makes an infection unlikely, since most infections cause severe loss of appetite. Is it maybe possible that the fish was being attacked vehemently and...

Freshwater Fish

Swordtails do not multiply

Hello, you should simply wait - provided both genders are in the tank (late maturing males look like females for a long time)! However, you will need to give the fish some time to...

Freshwater Fish

Tiger barb overeats

Hello, many barbs, including tiger barbs, very much tend to overeat. Sometimes it might help if you feed several smaller portions distributed over the day, and to distribute these...

Freshwater Fish

Tiger barbs nibble at fins of Guppies

Hello, tiger barbs as well as some other barb species often nibble at long fins of other fish. Long finned fish are not recommended for keeping together with tiger barbs. They should...

Freshwater Technical equipment

To which height should I adjust the outlet of an internal filter?

Hello, there are no firm rules, both is possible. Adusting the filter outlet also depends on the fish that you keep. Labyrinth fish, for example, require slow water currents - not...

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