"Bill Stock" wrote in
:

in this tank (10 g)

SAEs and this small tanks are not a good combination. SAEs grow easily up
to 5" or even longer, and they prefer to live in a big enough group. A 10g
tank is suitable as a short-time quarantine, but not as a permanent housing
for this fast swimmer.

I recommend you to find a bigger home for your remaining SAE. If you need a
good, small algae eater for a 10g tank with no strong water circulation,
think about pit bull pleco. It is small, it can tolerate rather high
temperature and it doesn't need as much oxygen as for example Otocinclus
catfish.

Liisa