AlexPalmer
New member
I have a 1.3 set of P. tigrinus in a tank using natural obsidian and shale. They've laid a number of dud eggs over the past few weeks, and when I went to clean the tank, I noticed the shell residue from where the egg was attached is still there and doesn't even scrub off; is there a way to dissolve it off using some kind of weak acid or any other method people may have tried?
