Disadvantages of Snails in a Planted Tank
I have one snail (maybe Ramshorn) in my tank. In last 3-4 months, it hasn't destroyed any plants or cause any harm to the tank. Instead, it cleans up some leftovers and algae in glass. I am interested in getting more. Hence, my questions:
1) Do snails cause any harm to planted tank? If so, what?
2) Which ones should I absolutely avoid?
55 Gal Tank with: Eheim 2213 Canister, Hydor Inline 300 Watts, 2X54 Watt (6,700K & 10,000K) T5 HO for 7 hrs, Excel for CO2
3 Discus, 4 Mollies, 2 Tetras, 2 SAE, 1 Pleco,1 Platy, 1 Zebra Danio, 1 Snail
1 Cryptocoryne, 1 Java Fern, 4-5 Unknown, Dwarf HG, Some baby tears