otocinclus survival tips

Hi there,
I am looking for advice on how to help otocinclus' make the adjustment
to a new tank. In my 2 experiences, I have lost halve of the number
which I purchased within a day. They appeared healthy and then within
eight hours were dead. My neons and corys do not object to the water
quality in this tank. I have never experienced losses with new fish like
Also I wondering about whether ghost shrimp will eat much algae. Will
they eat my prescious little otocinclus'