<a href=showthread.php?s=&postid=13383477#post13383477 target=_blank>Originally posted</a> by DMBillies
Interesting Norman... I can see that the foam that got exposed when the epoxy cracked as we moved or rock/foam between tanks is definitely slowly eroding, but I haven't noticed any of it floating in the tank. I wonder if you might have something actually chomping on yours or something...