ok so i have a 40 gal tank with 6 black skirt tetras, 8 zebra danios and 2 black mollies. as far as i knew my tank was fully cycled (no ammonia or nitrites) then about 5 days ago i added 1 ropefish and 2 days after begun salt treatment for ich (2 tsp per gallon). and now my ammonia is climbing, it was .50 the last 2 days and now is 1.0!! ACK why is this happening i keep having so many friggin problems. anyone know?