hi! tomorrow is one month since i got 4 amanos and one snail for my betta tank. they've looked great from what i've seen of them but, for about two weeks i've noticed i really only ever see two or three (idk they move so fast) out at night when i watch. is it possible that two of them died and my betta found it and ate them before i ever noticed? parameters have been normal this whole month. i know that my sponge filter is the shrimp hiding spot during the day time so during a water change just now i decided to cut out little sections in my background so i can see the shrimp behind the filter and low and behold there are only two. is it possible that the other pair is hiding somewhere else in the tank or would they all stick together?