Frequently asked questions

Freshwater

Replacing an aquarium with a bigger one

Hello, luckily, it is not that bad: Empty the old tank as far as possible, collect and keep the old water (!). Depending on the filter, operate it on a bucket of water as to...

Freshwater

First fish stock for a 60 centimeter (23.6 in.) aquarium

Hello, To 1.:6 guppies are alright, however you should in time make sure there are takers for the numerous offspring. To 2.: this (of course) depends on the species. The common (Neo...

Freshwater

Rot zones in the bottom gravel

Hello, first of all, 15 trumpet snails would be very few - possibly there are many more of them in the aquarium without being noticed! Regardlessly, the rot zone should be checked...

Freshwater Technical equipment

How to change the filter felt of a sera air membrane pump

Hello, the rubber stopper is only plugged in and can be lifted with a little screwdriver (or the like). It works in the same way for the smallest model (sera air 110 plus) of the...

Freshwater Invertebrates

Fish as snail removers?

Hello, I can only urgently advise against adding fish as "snail killers"! It usually concerns Clown Loaches and various pufferfish species. These fish are entirely unsuitable for...

Freshwater Fish

Fish have scratches

Hello, it sounds as if the Hoplosternum got "in the way" of the Thorichthys meeki (possibly those were breeding or preparing to do so?) and got attacked. The description - uneven...

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