Hi i just made this account to post here im just gonna get straight to the point. I have a 140 gallon tank that im a few steps from getting fish in. Im curious to what i can mix in the tank im planning on a NONREEF tank I wanted to put a few butterflyfish, Tangs, some clownfish and large and dwarf Angelfish. I see multiple posts saying they work and dont work. Some people say its better to add fish at the same time but unsure if I can add multiple marine fish at once without messing up the water conditions. I know which fish i like and would want to have in the tank but i dont want to kill any fish from aggression i also dont know if cleaner crews will be necessary or useful for this tank. Any replies or help would be appreciated. I am not keeping the 140 gallon for more then 2 years looking to upgrade down the road.