Ok I’m still pretty new to saltwater I’ve had my tank for like 4 months I’ve had one mishap like I spoke about before but now idk what’s going on in my tank I have a piece of organ coral that’s white that won’t open up all my other coral is fine. My goby died and now both my mochas are acting funny. My pistol shrimp seems to be ok but I’m no exactly sure either. Their gills are pumping hard all my parameters are normal no ammonia nitrites and trates are all zero I feed frozen and brine and flakes I alternate foods and everything one of my mochas has a parasite it a white long tubular poop hanging from anus I treated with focus and metro doesn’t seem to be helping at all and all these issues started a few days ago I monitored for a few days then went and got meds. I believe something is in my tank I just can’t figure out what it is