KH and pH-level fluctuations
Despite minor fluctuations being normal, major ones can be problematic or even fatal for the aquarium inhabitants. This is true if the pH level drifts into the acid range or in the dreaded case of a sudden drop in acidity, as well as conversely, if extreme alkaline values occur. With fish, we even talk of acidosis or alkalosis, which leads to major gill and breathing problems.
But these extreme water quality parameters also affect the microbiology, for example by restricting or even damaging the essential activity of the filter bacteria (nitrifiers). The Tetra BalanceBalls stabilise the water's carbonate hardness at a pre-set level determined by the aquarist. This means that the balls have intentionally been designed not to function in the same way as products that are specifically used to rapidly increase the carbonate hardness level.
Stable water quality parameters
It was this aspect that made the use of Tetra BalanceBalls at the zoo particularly interesting. After all, it is hard work achieving a stable environment or stable water quality parameters in an axolotl tank: The animals are only fed every four to five days and, on feeding days, an intermittent surplus of nutrients subsequently occurs due to the excretions.
The biological filtration performance also varies considerably with the changes to the pH level – making it extremely difficult to achieve a permanently stable environment in the water. However, by using Tetra BalanceBalls, these problems are now a thing of the past. Stefan Bramkamp stated: “In terms of stable water quality parameters, the BalanceBalls have been extremely effective. The water quality parameters are now at a consistently good level, which makes looking after the axolotl far easier. What a fantastic result!”