Hi, I have a 60 gallon tank with a 3 year old angel. I have recently noticed snails in my tank and am wondering if I can put a clown loach in with him? I'm also thinking about getting a few more fish : Boesemani Rainbow, bleeding heart tetra & Praecox rainbow. I'm just wondering if these would be a good fit or if my angelfish will harm them (he has eaten neon tetras)