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Hello all. My tank is 9 months old now. I have read posts from this forum and find it very informative. Can someone let me know what the red spongy things are? Are they harm full? Should I remove them? Thanks.

Hello all. I am fairly new to reef tanks (6 months). I am fairly certain I have aiptsia on the clam. Is the other picture also aiptasia. They do not seem to retract when I touch them. I've read the threads on aiptasia. What would be the best solution for the aiptasia on the clam...