I have a 10gallon tank and have had one sick Betta in it for about a week. I have been treating him with medicine [Maracyn] for 5 days and he is getting better. Now what do I do to start cycling the tank do I need to change the water since he was sick and I have medicine in it? [it has a carbon filter] , I want to add 6 neon tetras in their with him . How do I cycle it with him in their and when can I add the tetras? Also after adding the tetras I was thinking about adding one or two African dwarf frogs, would that be ok for a 10gallon tank?