Lol, yes worms!! I have mgopm soil, but the worms are California blackworms, fully aquatic and really great for dirt tanks, plus the cory cats are spawning
Blackworms are not easy to get in Canada, I ordered them straight form California, but hey anything for a natural tank
I supplement my oto cats with cucumber, or whatever veggie they like that I have on hand
Though in a planted tank, there's usually algae
Just not always what the otos like.