So I have a 3 gal marineland tank with a hidden filter in the back. I have 3 fake plants, gavel, a heater that keeps the tank around 79, and 1 male betta that's like 1.5 inches long (got him 3 weeks ago). I want to put a great pond snail in with him and I wonder if it will work and what I have to worry about. Can I just get it from the creek by my house? And also how well does my bio foam thing filter out the ammonia from the water because I hear snails make a lot of ammonia. What should I feed my snail? Thank you. :-?