Ammonia levels affected by copper??

The last 3 days i have had my fish out of my DT and in a recently setup QT. The QT is a 10G using a aquaclear30 with carb removed and a elite submersible filter with carbon removed and an airstone. In the 10G I have a foxface, mated perculas, and a damsel. I am treating for ich and velvet, using coppersafe by madrel, and maracyn-plus with it. all is going good so far but i am battling ammonia levels! for example last night just before bed i do a test; .50 ammonia. i do a 2.5G water change so 25% and go to bed. this morning i re-test at .50 - 1.00!! i feed just a pinch and it gets all gobbled up so no extra laying on the bottom, i have good circulation and aeration and still can't determine where i'm getting ammonia from. is the copper or maracyn throwing off my test results?? how can i control my ammonia levels with no carbon and no- bio filter established since its a new setup?? i belive my treatment is working but i'm going to kill the fish if i cant keep my ammonia in check!