Snail buster

[Goalkeeper]

Hi any good recommendation for treating snails? Bought the Azoo snail treatment and instruction says use half the recommended dosage if shrimps in tank. Been following instructions (half dosage) for few weeks now (weekly dose) but no effect. So far only see some tiny snail (transparent shell) but no big ones. But numbers seem to be increasing and noticed my tiger lotus leaves are partially gone....not sure if it's the snails feasting on them.

[aquahob]

i use the snail trap. it works better