BTW, addition of iodine and dilute honey (yes, those produced by bees) soluion is found to be helpful and efficient on maintaining the color. Sufficient amino acids which are the basic sources to build up a protein canbe found in honey. You can try to add to see if this method works!
Honey, which is rich in either sugar and amino acids, can be used as carbon source and protein synthesis source. For carbon source, might act as Vodka, should be helpful in removing nitrate and phosphate. As for the protein synthesis source, amino acids are essential compositions of proteins. Since the colors of the corals are lights emitted from the fluorecent proteins in the corals, providing sufficient amino acids should be efficient for the protein synthesis. The more the fluorecent proteins inside the corals, the intenser the color of the corals.
This is suggested and tested by myself. Any question or comment are welcome to discuss here!
Before dosing, I usually dilute the honey in fresh water in the ratio of 1:100 (honey/water). With the dilute solution prepared, 1 ml soultion is dosed per 25 gal (~100 liter). No negatives are observed to date. I start to dose honey since two years ago. Should be feasible to reef tanks. You can try this method with half the dosing amount in the beginning.
