My first coral that I got for my tank over a year ago was a frag of 3 Rasta zoanthid polyps. Now, over a year later, they’re at 12 polyps. I have other zoa frags I got later on and they’ve grown from 3 to 100 polyps in 6-8 months, but no luck with these.
I will say at one point they were covered in hair algae, and I did a 50/50 tank water and hydrogen peroxide dip. It took care of my problem and the coral are still open and happy, just not growing. Is there a chance that dip stunted their growth? Are these color known to be hard to grow? What is the best lighting and flow conditions to grow these?
I will say at one point they were covered in hair algae, and I did a 50/50 tank water and hydrogen peroxide dip. It took care of my problem and the coral are still open and happy, just not growing. Is there a chance that dip stunted their growth? Are these color known to be hard to grow? What is the best lighting and flow conditions to grow these?

