Sponges..
Oldest 3 months, newest 2 days...
So far only 1 could not make it and it is the most difficult one which is the bee sponge...
The rest are spreading on the rocks and showing presence of their siphon tube which they will expel the filtered water from their surrounding and also a sign that they are alive and feeding...
Anyone wants more info, can pm me or I can share on my thread if anyone interested..
Blue encrusting Sponge..