I have used Purigen with rays many times and it is safe.
Like others said though, it won't take the place of your water changes.
I wouldn't rely on it to do anything besides make your water scary crystal clear.
Sometimes I come home and think all the water drained out of my tank it gets so clear.
Like others said though, it won't take the place of your water changes.
I wouldn't rely on it to do anything besides make your water scary crystal clear.
Sometimes I come home and think all the water drained out of my tank it gets so clear.