I was thinking about Zebra loaches, but was not sure if they would work? Also if they would work for me, how many would be best?
I have a larger tank that is a 60G with 1 common spotted weather loach and one golden, I had hillstreams that I kept for a few months, but after an algae bloom (green water) they died overnight when I installed a UV sterilizer, due to a drop in oxygen once the algae died.
Oh and Hello everyone, nice to meet you.

[Edit]
Here are some photos of my current loaches, incase you are interested.

