So this is a dumb question but I just want to make sure everything is okay. In my 20g I have 3 x-ray tetras, 3 guppies, 2 otos, 3 ghost shrimp, and 1 nerite snail. Considering I have 6 algae eaters in my tank, you would think sinking wafers would be popular. If I put algae wafers in the tank the shrimp will mess with it a bit and then it is left alone. I tried putting in sinking shrimp wafers that fish in my other tank eat, and those are eaten more. But over half is still left the next day. I never see my otos unless I'm cleaning my tank and move the hides, but whenever I see them they look healthy and at a good weight. My snail is active along with my shrimp who molt their shells as often as they should. They seem to be doing perfectly fine which is why it's dumb that I'm even asking if they're okay. But I mostly just want to know of anyone else has experienced this? The bottomfeeders in my 55g devour their wafers so it's confusing.