snail vs shrimp...which creates less ammonia in a smaller unfiltered tank? I have 2.5 gals im setting up which will be planted with moss mats, anubias and javas. I plan to do a 50% water change every 2 days...I already have a bunch of nerite snails in a 5 gal snail tank but they poop A LOT! I cant believe how much waste they create, but Ive never had shrimp...do they make as much waste as a snail? If I go with shrimp im thinking 1 shrimp to a tank, same with if I go with a snail. Also the snail tank I have set up currently is full of sea shells for calcium which they were in need of when I first got them delivered to me in the mail...I wont be able to add calcium to my betta tanks or shells as it will raise my already out of the roof Ph. Which would work best for my set ups?