I have two new 2.3 gallon wall aquariums with sponge filters and heaters. I will have live java fern, java moss and eco-substrate. I want the tank to remain crystal clear. Other than weekly partial water changes I want to include natural detritus and algae eaters. Since there isn’t much space I am considering an olive nerite snail per tank. Is one nerite snail sufficient enough to clean the glass and detritus? Or should I add a snail and a ghost shrimp (a cherry shrimp is too colorful and I fear the betta will make a meal of it). I even considered 1 or 2 freshwater claims but I’m not sure they’ll take care of the aquarium glass.
Note: There is 1 small male betta per 2.3g tank.