I need ids on couple things
Is this a sponge? They are staring to spread and connect with eachother
Polyps? all look clear they are spreading im starting to find em on few rocks all rocks are at bottom of tank
This i circled in yellow and arrow pointing to where it opens. It slightly opens up and something black comes from it the black stuff comes from where the arrow is mainly looks like it wants to open up all way thru like split but it doesnt
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I need ids on couple things