Help! Worried about otos and biological filter.
I have a newly cycled tank with lots of plants and 3 otocinclus. I got the otos because everything I read said that planted tanks grow lots of algae and otos are great algae eaters. The problem is, my tank doesn't seem to have any algae. So, I've been giving the otos zucchini to eat, but I don't know if they're getting enough. I haven't noticed them making poo-poo. If they aren't pooping, that means there's no ammonia to feed my biological filter, right? Is all the bacteria going to die because the otos aren't pooping enough? I don't want to lose my bacteria that took me so long to grow! What should I do? Should I add more fish right away? How much time do I have before my bacterial filter dies?
55g: Finnex Planted+ and MonsterRay, Pressurized CO2 w/ Atomic inline diffuser, Eheim 2217, Eco-Complete, EI ferts. Lemon, Glowlight, and Black Neon Tetras; Harlequin Rasboras; Otos. Staurogyne repens, Hygrophila corymbosa, Ludwigia repens, Ludwigia glandulosa, Red Melon Sword, Wisteria, Water Sprite.