What is this, just found recently? Has what looks to be like tentacles with holes. Also found a white one on the back of my rock with alot more tentacles and holes. Just got the anne. you see right near it. Just wondering if that is a split?:bum:
The sponge as it expands its growth will kind of encrust the rock. There is nothing wrong with this sponge. I have that perticular colored one in my own tank. The only thing that might pose a threat is if it decides to grow inside a colonial polyp of some sort. I have seen these type of sponges grow and choke out the surrounding coral.
I have sponges that color purple too. I have some white sponges that like to form appendages that stick out into the water. I also have beige colored encrusting sponges (they tend to grow out of light), and one or two black sponges. . . and even some yellow
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