So the Otocinclus is in the last image.
My next opportunity for education:
Corys and Otos and Loaches, Oh My!
And Dwarf somethings of one of those.
I'm working on stocking a 20g and need a bottom-ish gentle species. I am leaving room for 4 or 5. I think I may go with the Otos. BUT, I saw some dwarf somethings that came in salt and pepper, zebra, and a 3rd type. I want ones that don't get big, and will be peaceful and friendly to the others.
I'm excited about setting this tank together!
Any suggestions?