Last Wednesday I made a big change to the crab part of the fragtank. I removed the covering rock and replaced it with the “crab-rock”. It was a rock that I was building up with all sorts of corals on it. Now the purple mushroom has been removed but instead the following corals where added, a Toadstool Leather coral, Kenya Tree coral, Button polyps, Starburst polyps and the latest addition to the crab-rock, a Cabbage Leather coral. Next to that rock I also moved the rock with a big Button polyp and Red Mushroom. So now the top of the Crab tank is covered with corals.
Here are some pictures directly after placing the rock, everything looks better already.