Thank you guys, after doing some extensive research Im going to skip gravel and try to find some of the 3M color Quartz. I will try and post some pictures when everything is completed.
You could add an AC on there. but I don't think filtration is the problem.
it sounds like you are overfeeding your fish.
I have monsters too and feed lots of pellets. But if you find it is taking hours to clear after a feeding it is a good indication that you are putting in too much food.
your tanks should ideally look like there is no water in them, like this:
if not, cut back a bit on the feeding, and do an extra water change.