WOW, my friend.... get ready for many water changes.
My first advice, is to read the Nitrogen Cycle article here on fishlore. That will tell you everything you need to know. In the meantime...
You have 2 very heavy waste producing fish in a new uncycled tank. The entire
nitrogen cycle process begins with the conversion of solid wastes excreted by fish into
ammonia.... and your ammonia levels are going to be extremely high in the next few days, excess ammonia is extremely toxic to your fish, hence... the need for water changes.
If you can get your hands on Bio-Spria, by all means get it ASAP and add it to the tank!
I wish you the best of luck with your tank and your fish.