Red and green lampreys love weakly acidic, low hardness water. The best water temperature suitable for breeding are 22 to 28 ℃, mixed with other fish is best to adapt to this range.
The general principles of mixed culture of ornamental fish are as follows:
1, water temperature and water quality requirements close.
2, character does not produce conflict.
3, body size close.
4, appropriate consideration of stratification.