Ok... I owned ottos once before (three of them) and they died off probably due to imporper treatment since they were in a 5 gallon tank where they polished all the algae off in a week and then were stuck with just algae tabs and zucchini. Would I be able to put an otto or two in my 15 gallon tank as it is stocked now (see aquarium info it is updated)? I really liked them and my tank is very well established and well planted. It has plenty of diatomes and other algae on the plants and walls. Usually I would just stick with nerites or amanos but I can't keep nerites or any snails for that matter alive more than like a week and every time I do a very large water change or repeated water changes all my amanos die. Should I just stick with amanos and do only normal water changes or do you think I could do ottos? I know my lfs feeds their ottos zucchini and cucumber and they are used to accepting it so I could always feed that if I run out of algae and as a supplement and I could see if they eat algae tabs also. Any ideas?