You could possibly try a school of Pygmy or Panda Corydoras? Both hard to find, but perfectly suited. As to swimmers, possibly rasboras (of any sort) could work, making you a tad overstocked. Other fish you could have are good ol fashioned guppies. Cheap, hardy, and playful. A platy would fair well as well. With regular water changes and it being planted however, that would change it all. The otos need a source of algae to feed off of. Most are wild caught and don't do well without natural food. For now I would say no otos unless they are seen eating prepared food at the LFS. To the other stocking be careful. Gouramis are a hit or miss with shrimp in my experience. Without proper plants for protection, they could get eaten. My current stocking is a bit crazy and not recommended.
1x Fire Red Dwarf Gourami (M)
1x Glowlight Danio (going to buy him a school soon)
3x Otocinclius (Cleans every piece of algae off literally everything. I never feed them)
1x Panda Corydora and 1x Bronze Corydora (buying a school of pandas tomorrow)
1x Female guppy (deformed and I like her bone structure)
I plan to add more glolights, but with heavily planted and regular water changes I should be fine. The tank is a year old which is needed for the otos. I think I am a B+ when it comes to answering, but if you have questions for me dont be afraid to ask
1x Fire Red Dwarf Gourami (M)
1x Glowlight Danio (going to buy him a school soon)
3x Otocinclius (Cleans every piece of algae off literally everything. I never feed them)
1x Panda Corydora and 1x Bronze Corydora (buying a school of pandas tomorrow)
1x Female guppy (deformed and I like her bone structure)
I plan to add more glolights, but with heavily planted and regular water changes I should be fine. The tank is a year old which is needed for the otos. I think I am a B+ when it comes to answering, but if you have questions for me dont be afraid to ask