Need help with substrate
I have a 55g aquarium that currently just has the rocks/gravel from the fish store. I would like to change this and have been doing research and found that I could use sphagnum peat moss (1L per 8us gallons) red clay (1kg per 8us gallons) I also read that we should add Dolomite but not sure how much to add.
My process thought on this is to empty the tank and remove the fish ( I would transfer them to a rubbermaid bin with at least 90% of the water), remove the gravel and then add the new substrate. Just curious before I do this if it is safe and any other tips one can give me. The tanks contains, yoyo loaches, one shrimp, Oto cats, 5striped barbs, neon tetras, lemon tetras, and other fish in the tetra family. Thanks for the help.