I just wanted to warn other corydoras owners: two of my cories went missing; one 2 months ago, and the other 1 month ago. Today I was cleaning the tank and moved the shells (pink mouthed murex) and to my horror saw that one of the tank's tetras had gotten wedged in there.
I carefully got the tetra out (since the shell was dissolved in areas, I broke pieces off and got the tetra free.) To my continued horror, I saw the decomposing body of the missing green cory wedged even further into the shell. I pulled all the murex shells out of the tank (no more shells like that in there ever again) and got his body out. And was even more upset to see the decomposed skeleton of the original missing albino cory.
I tore that tank apart when they went missing, but I figured the pleco ate them. I had no idea they could get stuck like that. Terrible.
I urge you to not put shells in your tank that spiral like the pink mouthed murex shells, since two of my cories died terrible deaths in there.
I carefully got the tetra out (since the shell was dissolved in areas, I broke pieces off and got the tetra free.) To my continued horror, I saw the decomposing body of the missing green cory wedged even further into the shell. I pulled all the murex shells out of the tank (no more shells like that in there ever again) and got his body out. And was even more upset to see the decomposed skeleton of the original missing albino cory.
I tore that tank apart when they went missing, but I figured the pleco ate them. I had no idea they could get stuck like that. Terrible.
I urge you to not put shells in your tank that spiral like the pink mouthed murex shells, since two of my cories died terrible deaths in there.