I have a 40-gal breeder set up as a planted, turtle tank. There is about 22-25 gal of water in the tank. I have a 5lb CO2 tank with solenoid and pH regulator hooked up to a diffuser in one corner of the tank. In the opposite corner, I have a CO2 drop checker. I just cleared up an issue with my...

So my first tank which is finally growing in nicely, has become a playground for snails. Not sure how they got there as I haven't seen any for almost a year and no new plants have been introduced but somehow they breached the defenses and have made themselves at home. They are very tiny little...