Using bio-pellets with or without gfo, carbon & cheato.

I note from your other thread, there is an Acro frag already in the set up
so reducing those trates, would be a good idea IMO
high nitrates , can cause increased symbiotic algae production in the SPS corals (Zooxanthellia) and to many of these , mean a nice purple coral for example becomes a plain brown coral

Bio pellets is one method
you could also look at

reducing your feeding = feed frozen more than dry and thaw out and discard the water that the frozen food, is frozen in
increasing the number and type- of macro algae
increasing the photo period for lighting in the fuge
when performing water changes syphon from any areas that detritus can collect (syphon over cracks/ crevises in rockwork for example)
if your running a sump - what is in there ( if its anything other than water, and equipement that may be a source of your nitrate issue)
blast the rockwork with a power head once a month to drive out any collected crud that has settled in there
use a sock or filter pad on the end of your overflow to collect this otherwise it just goes around and settles elsewhere and your back where you started from
increasing the amount and frequency of water changes - in line with doing the above things

 

Oh ok... well currently my sump photo period is 14hrs night and DT is 10hrs day. cheato growing at good rate.

 

I would strongly disagree. Technically, it is true that GFO will remove carbon and GFO phosphate, however, there are two caveats.

1) Bacteria, or death of bacteria can release toxins which are removed by especially GAC, and possibly GFO. This is very important IMO. Also, if there is a something, such as a limitation, preventing bacteria from utilizing carbon, GAC will help keep down the carbon level and prevent levels from skyrocketing.

2) As some of the bacteria utilizing the carbon source also reduce nitrogen, nitrogen may become limited before phosphate, allowing phosphate to build. In this case some GFO is useful. Also, GFO is very good at reducing toxic metals, which probably exist in high quantities in our system, so, this is very important.

From this article, when running GAC and protein skimming, carbon still remained near natural ocean levels with carbon dosing. Granted this is just one article, but it shows that GAC does not necessarily reduce carbon to insufficient levels, at least when dosing a carbon source as well.
Feature Article: Bacterial Counts in Reef Aquarium Water: Baseline Values and Modulation by Carbon Dosing, Protein Skimming, and Granular Activated Carbon Filtration — Advanced Aquarist | Aquarist Magazine and Blog

 

awsm thread but it dint write anything about GFO..

 

? I am not sure what you mean, you mentioned GFO twice in your "comments".

 

use gfo or no with bp? in ur article, i saw they have not mentioned about using gfo