I ask because even though both species are peaceful, the cardinals prefer SOFT water and I think the rainbow prefer HARD water.
The rainbows seem to be doing well and they are eating a lot when I feed them. However, whenever Ihad cardinals, they never seem to survive....does this have to do with the water being too hard for them?
Any advice? Thanks!
The rainbows seem to be doing well and they are eating a lot when I feed them. However, whenever Ihad cardinals, they never seem to survive....does this have to do with the water being too hard for them?
Any advice? Thanks!