I have a freshwater tank 20 gallon right now its in it's cycling process, but later on I was thinking of getting a snail or two.. I was wondering if anyone has any info about them that could help me out, if i get snails would i still need a pleco , and how many would I need, what different types are good, i dont want to ask the associates at my local petco, they kind of.. well.. just arnt helpful. I cant really find out much on google either suprisingly, anywho, any info would be much appreciated, im new to the tank life. lol thanks!!