SCUGrad

I have six glass catfish and they have been in the tank for several days. They school beautifully but duck behind the plants with the clown loaches (who also school). They spend most of their time hiding (maybe 70%) but once in a while, I'll see them darting outside their driftwood home. The loaches are the same but as I write this, I see a loach of two nibbling through the gravel out in the open.

Lucy

Thanks for updating your aquarium info, it's very helpful.

I notice you have an ammonia reading. Was the tank cycled before? What are the readings for ammonia, nitrite and nitrate?
This can effect all the fish you've asked about and cause them to hide (as they are all hiding).
Adding 11 fish in the course of a few days will overwhelm your bacteria.

It would be a good idea to start daily water changes with Prime until your tank finishes cycling or you recover from the mini cycle.