Sorry about the freshwater thing..Shut my mouth..
The first tank is the 72g bowfront..second is the 50g quarantine and the last is the 90g....I am going to get my wife to record the way I usually feed my 90g as the fish are aggressive but have a lot of personality...well the Moray isnt really aggressive..but very cool...
As for the question how many Chromis are in there, I believe there are 6 regular blue Chromis and 2 Yellow tail. I got them when I was cycling the tank and actually expected to lose a few during the cycle. I only lost 2...I like them though as they do school but I would have to pull all the rock out just to catch them. Maybe one day I may try a fish trap if I determine that they are becoming a nuisance. So far they are fine. As far as the Huma Huma goes, he seems to be aggressive to the snails that were in there but not to the other fish. I know this can change but so far so good.. He will feed right out of my hand and recognizes me when I come in the room, so does the flounder..really cool fish, not sure how big he will get in a 90g but if I can ever persuade my wife to let me get a 300-400g tank well.....I think they can get up to about 12"...The next project in the works though will be a 50g sps tank..still a while away although I have all the equipment in the garage....time, time and more time that I just dont seem to have right now..LOL