snails on acrylic tanks

[gkrane]

I have read that some snails can scratch the surface of acrylic tanks. I hope this is not the case since i plan on setting up a 180 gallon acrylic.. I have always felt that at least some snails are neccessary for algae control as well as sand sifting benefits...please let me know if you have any info on this...

 

[XXX]

The only bad scratch I have was caused by an astrae snail. It had a sharp edge on the underside of the shell which I was able to break off. I guess some off the small scratched could have also been caused by snails, I don't know. My acrylic tank has been stocked with 50-75 snails for 16 months. I wouldn't lose any sleep over it.

 

[myreef]

The only time I know a snail scratched my acrylic tank is when I removed the snail while I was wiping down the tank. I moved the snail therefore HE scratched it.

I wouldn't worry about it either.

 

[Anonymous]

I've had a couple of acrylic tanks but they've never been scratched by a snail. The only problem I ever had like that was a chiton that set up home base at the sand level in the front. He scratched the he%% out of it but only at the sand level. After a few years I was afraid he was weakening the tank at that spot so I removed him (THAT wasn't easy!) He had quite a deep groove going there...