Ive many ppl and noone has said for certain what this is. Just want to make sure its not bad!
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Yup, it's a type of sponge, I have something similar in my tank.Ive many ppl and noone has said for certain what this is. Just want to make sure its not bad!
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Sponges are generally a good thing and a sign of a healthy systemCool cool good to have though??
there are cases where the sponge has overgrown its boundaries and bothers coral, but sponges are easily scraped away 


