Update of my bio pellets aquarium, more or less everything is the same, nitrates very low aprox 0,5-1 mg/lit, very heavy feeding.
Here is the video of feeding with my diy food, aprox 2-3 times daily I feed like that, video is made with fourth cube of food that day so fish was not so eager.
http://www.youtube.com/watch?v=NJN4iuRugSE&feature=player_embedded
Interesting observation what I get from this experiment, I have 2 small patches of bryopsis at the top of reef ceramic, very small algae colony. They are absolutly the same size and growth with the nitrates at 100 mg/lit and with nitrates as are latelly: 0,2-1 mg/lit.
Also colour of my corals are more or less the same, with 100 mg/lit nitrates and with 0,2-1 mg/lit.
Only drastic changes I noticed when I get first bacterial bloom few months ago what wiped out all algae and slightly colour some of my sps corals, that bacterial bloom wiped out all organic very fast, even my sand get clear because bloom wiped out detritus and algae from the sand.
Besides that drastic changes during bacterial bloom my aquarium are more or less the same with nitrates high as 100 mg/lit or 1 mg/lit. Of course I can feed more, aquarium look more healthy, maybe some corals grow litlle faster but in visual apearance nothing is changed. Nitrates itself probably dont have so big efect in aquarium, other issue what are related or cause of high nitrates have probably much more efect of coral colour and algae then nitrates.
Also at the plastic pieces (powerhead body) I get much more algae now with hundreds time less nitrates then what I had with high nitrates, not a big issue but is interesting to find that at 100 mg nitrates I have mostly coraline algae on powerhead and now with 0,5-1 mg nitrates I have hair algae.