I use tap water with my rays, pH of 8.5 and hardness off the charts, no probs. I have heard of geo working though.
ummm, I have aros are popular for the surface, lots of people like dats or pbass for the middle. Some cats are ok. So long as the fish wont eat the ray, become food, or pick on the ray they are fine
ummm, I have aros are popular for the surface, lots of people like dats or pbass for the middle. Some cats are ok. So long as the fish wont eat the ray, become food, or pick on the ray they are fine