I have a bunch of small vermetid snails. They are not the big ones, just millions of little ones. You can't see the webs, but I know they are there. My sps grow very fast when I first put them in, but slow down after they get bigger. Almost all of my sps have vermetids in their skeleton and I'm wondering if this is stopping the coral from growing? I hate the snails, but nothing is dying and all of my SPS have pretty good colors. I'm just not sure if this is normal for sps to slow down in growth after a while or if the vermetid situation is really hurting the growth.