I bought this acan and the brown plate looking things were attached...ok so now 2 months later these things are getting big!!! Anyone know what they are and if they are a nuisance?
Oh man... I am so sorry that brown stuff is going to spread all over your tank and kill everything. Just give that rock to me and I'll take care of it.
Seriously it look like some type of kelp. No big problem.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.