I used all dead rocks(dried from previous tank). I think the calcium reactor and the media play a big role of keeping the levels stable and therefore faster coraline to establish. The coraline on the sand is a little annoying but I can’t complain since there could be worse things growing on the sand. I’ve always used ARM media but recently changed to Reborn.Wow. Impressive. I’m jealous of your corraline. We set our tanks up around the same time and I’m still only getting little dots on the back and glass. Almost nothing on the rocks. Still having fun reefing though.
Nice fish collection too.