Laughing: How much waste would you say nerite snails produce? Have you calculated the bioload it produces per day and calculated how much waste it would produce until a water change is needed and incorporated how it would fair with a betta and/or other aquatic creatures?
Sorry, not trying to be rude, I'm just trying to learn myself. I've personally have grown fond of snails, especially after owning a mystery snail for the first time, and I like the idea that nerites are smaller and produce less waste.
Anyway, I'll agree with you that they won't produce as much waste in comparison to mystery snails, but I mainly agree because nerites get about an inch if not less and apple snails can very from 2-6 inches in diameter depending on the type. From what I've read, if I understand it correctly, the algae will take in the ammonia and basically store it for food- you have a snail or fish eat it, it basically recycles that algae and expels the ammonia back, no real increase at all, although since the algae is getting the ammonia from somewhere (fish or excess food/pieces of dead plants), then obviously water changes will still be needed. Although, when the algae starts to die down or is non-existent, you need to feed your snails now by hand. That food will turn into ammonia/waste causing an increase in the waste that's already in the water.... So that being said, in a 2.5g, is it still fine to have so many critters in the same tank, especially since it can't hold a stable cycle? I'm not sure how much waste bettas produce, either, as I've only gone by the inch per gal rule without knowing there was actually a way to calculate the bioload up until now. Although when I get the chance and figure it out, I'm gonna try to calculate the bioload- mainly for the sake of knowing and learning something I think would be useful in the future ^.^;;;