Hi! Thanks :) It is an Aqua Tech 5-15 that I got with the tank when I bought it off CL.
The instant aquarium sand came with water conditioner that has slime (?) in it too.
I don't have a test kit... but I'm buying one for sure now!
I don't have anything I can put under the flow. What do you think about a tall glass???
I left if off overnight and he seems fine although the water seems a bit cloudier than it did last night when I went to bed. I decided that I will fast him until this evening to try and keep waste to a minimum today. Guess I know what I'm doing at lunch!!