i have a very large jet black snail without a shell living in my 15g reef tank.
at first i thought it was a stray
mushroom coral, hes shaped the same and has that same velvety looking shroom texture.
hes round about the size of a half dollar maybe a bit bigger. i thought it was a nudibranch at first until i saw him sucking on the glass like a snail would with that lil scraper tongue.
his bottom is a bit paler, grayish pink
what the heck is this thing?
he is nocturnal, i wish i had a pic..but hes hardly out
