I am about to stock my 10 gallon tank. I cycled for 3 weeks with zebra danios, then traded them in for 6 neon tetras. My stocking plan is 8 neon tetras, 1 male dwarf gourami and 2 female dwarf gouramis. I put 2 ghost shrimp with the six neons, but I have only seen 1 shrimp in the past 3 days. The other shrimp was smaller than the one I keep seeing. Is it possible that the neons ate the smaller shrimp? I'm thinking of buying 2 more shrimp to keep the tank clean. Would 4 shrimp be too much with the other fish I plan to stock the tank with (8 neons and 3 dwarf gouramis)?