I started my nano cube 24 August 29 and let it cycle for about 6 weeks--have added cleanup crew in last week and a half and am looking at getting my first fish in the next couple weeks--my wishlist includes 3 of the following 4 and am looking for some pointers on who to add/not add and when--I am looking a true percula clown, royal gramma, six line wrasse, and green clown goby--what to add and when?