Stocking question

[Anna94]

I have a 29g with a 40 gallon sponge filter and a Fluval C4 hob filter. I do weekly 40-50% water changes and gravel vac each time. Right now I have 7 cardinal tetras, 6 lemon tetras, 2 Celebes rainbows, a horseface loach which I plan on either rehoming or donating to my lfs, and an oto, but I plan on adding at least 4 more. Besides adding more otos and getting rid of my loach, I wanted to add 5 green fire tetras. At that point would I be overstocked? If so, what do you all suggest?

 

[DFly]

With all of your suggestions your tank is not overstocked and your filtration is great. I would recommend getting a few more rainbows though. Even though they are fine alone they are much more active in groups and even school!