Hey guys this is my first time trying this website out, I am just in desperate need of some answers. I have a 20 gallon long sorority with 4 females, 1 male, and five neon tetras. Filtered and heated, I do about a 30% water change once a week. Everyone is on a varied healthy diet and everyone gets along. I just added an air pump bubbler like a week ago. Only time any of these fish have had any sickness was when one had a bad swim bladder and it was taken care of quickly. So here's why im freaking out, I just went to feed everyone (they normally all come to the top and wait their turn) I noticed my male didnt come up. All of them are pretty good at being little Houdinis but i can say ive spent the last two hours looking through the tank with a flash light, taking some of the deco and plants out and even sorting through some of the rocks and checking the filter. I cant even find a PIECE of him. He was alive and well this morning, Ive checked all around the outside of the tank even though its hooded, im literally stumped. Could one of my females have eaten him?