Unidentified algae

Does your camera have autofocus? Its the lil flower thingy... Try setting some boxes or something in front of the tank to rest the camera on and use the flash.

 

Okay ill give that a try....I dont think my calcium is too high, im sitting at 420ppm

 

A friend of mine who is has been a reef keeper for 30 years thinks that it's some sort of sponge, since him and I both use actual filtered sea water, he thinks it might be some sort of sponge hitchhiker. Any thoughts?

 

possible, using a real sea water direct from sea is risky even though you filter it. unless you talk about nutrition sea water. $17-20 per 4.4g at LFS

 

Its filtered and put through a ph buffer and phosphate controller, I actually get it from my dad who supplies it to the LFS, no one has ever had any problems with it.