new posible additions

My tank is getting close to cycled so I'm, thinking of getting some more
fish for this tank. It has a 3.5:" banded rainbow it is going to get a
2" zebra diano as he is pecking at my glowlights(bad boy ). I would
also like to add a botia to eat the snails in the tank as I added gravel
to help the cycling. is there a loach that will do good on his own. to
note is is a ten gal. I cant quite afford a new tank to acomidate them
all just yet. plans on building a 50-90 gal tank in the next year. space
limitations so i cant buy one. 47 damn inches.