I have a 20 gallon tank about 6 weeks old, populated with 1 dwarf gourami, 3 red wag platys, 6 neon tetras, and in the beginning I put in 8 ghost shrimp. The ghost shrimp seemed to hide a lot, except for feeding time. Now I think some are missing. During feeding I only see 2 or 3 of them. I've read a little about tetras eating shrimp... is it possible that my shrimp are being eaten? The neon tetras are so small that they even seem to ignore the larger food flakes and just eat the smaller ones. How would they eat the shrimp?