I have 2 golden apple snails (just like graphic at top of this page) only 1 to 2 inches big, who I moved to my 10 gallon tank since the new comets were picking at them constantly in the big tank...I've added some rocks and plants, the little tank looks so cute, but would like some fish. What should I get? It's such a little tank I can't have anything that grows big...and its freshwater. I need them to be very hardy since I'm a beginner. Any suggestions? Thanks