Frequently asked questions

Freshwater Care

Brown layers on plant leaves / Diatoms

Hello, according to the description, they are very likely diatoms. The layers should feel like sandpaper in that case. Diatoms are pioneering organisms in newly set-up aquariums,...

Show complete answer
Freshwater Care

Can an aquarium be planted too densely?

Hello, this is virtually impossible, provided the fish have sufficient space left to move! It is important to fulfill the nutritional requirements in very densely planted tanks....

Show complete answer
Freshwater Care

Can I use flintstone in an aquarium?

Hello, flintstone mainly consists of silicium dioxide and does not contain lime. Removing lime with an acid is therefore not necessary, rinsing and removing attached dirt is...

Show complete answer
Freshwater Care

Can I use sera bio nitrivec in a stocked aquarium?

Hello, this is of course possible, e.g. during the water changes mentioned on the label. However, you can also just add it into the filter as to improve the biological breakdown...

Show complete answer
Freshwater Care

Can the carbonate hardness be higher than the total hardness?

Hello, the reason for this difference is as follows:From a "chemica"' viewpoint, the total hardness ist the total amount of bivalent metal ions. In practical aquarium terms, this can...

Show complete answer
Retailer search
l