All of my parameters are in check with the exception of my Phos which is at 0.31PPM I am working on this by use of a Bio Pellet system that has been up for 1 week.
Did your Zoa melting issue coincide with the start of bio-pellets? Do you have elevated Nitrites, or just Phosphates?
Did you start initially with a small amount of pellets?
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man. - George Bernard Shaw