14 Gal with algae problems. Can I add a Mexican Dwarf Orange Crayfish (CPO)????

Yeah it has a 10g footprint, I like the idea of adding some Oto's. If I did add a clown pelco it would be a baby and I plan on upgrading this tank in the next 2 year's to a 30gal anyway.

What I need is something to help with algae control and a few Oto's probably do more work than one clown pelco. I also have read that pelco's have a bigger bioload also. (clown pelco can grow up to 8cm)

are Oto's strictly herbivores? Is there a chance they might take a bite off the sides of my other fish?
 
No they wont bother your other fish at all.
 
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