Are clam and snail shells harmful in an aquarium?
Hello, there are no objections (except that it may appear optically unnatural, but this is a mere question of taste and does not bother the fish), provided the shells are free from...
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Are fertilizers harmful for shrimps?
Hello, they contain only such minimal traces of copper that there is no danger even for very sensitive shrimps and other invertebrates. sera florena and sera florenette are...
Available water is strongly polluted with iron
Hello, there is actually only the possibility of completely deionizing the water.Preferably with an ion exchange system rather than a reverse osmosis (R/O) unit, since iron tends to...
Betta has no upper lip
Hello, this can be due to a disease (was there possibly any kind of skin slime visible?) or an injury. If it was that way from the beginning, a misshaping (e.g. by mineral of...
Black fin edges after a fin rot treatment
Hello, this kind of black edge sometimes occurs after a successfully treated bacterial infection - it usually heals more or less completely. No further treatment is required if there...
Can fish die even several days after a nitrite intoxication?
Hello, the nitrite level should by all means checked daily (twice if possible) - sera toxivec and sera bio nitrivec provide detoxification and biological activation, respectively. B...