LPS losing all color

[petemichelle]

I have a couple of LPS, specifically a large bubble coral, and a torch that have lost all color. The torch was bluish/purpleish but now is completely clear. it looks okay, extensions come out and I feed it but it's just clear. the bubble coral was reddish/bluish and has 2 separate large heads. one head still has the same original color but the other has become clear on 3/4 of there bubbles. My parameters are great, alk is 8.5, cal is 425, mag is 1350. I use a apex Triten to auto dose and test. i dose 5 ml of Red Sea colors A iodine per day, 7ml of Red Sea Colors B potassiumpere day, 25ml of red sea colors C iron per day, 7ml of Red Sea D Trace Elements per day.

any ideas guys what could cause this loss of color. it's only in these 2 corals. all other corals look normal.

 

[Billldg]

Your parameters look good, what is your salinity at? Why are you dosing so much of the Red Sea Trace, I also use Red Sea Trace and only dose a couple mil of each every other day. What type of lighting are you using and at what intensity? Also, when did you last calibrate your trident, I also have one and love it, but it does need to be calibrated. I calibrate mine every other month when I do a compete reagent change.

 

[Tahoe61]

Lighting specifications please.

 

[petemichelle]

i have a 150 gal tank so that's maybe why my dosage is higher. plus more in the sump. salinity is 35.5. calibrated the trident last time I changed reagents, probably less than 2 weeks ago. lighting is provided by ecotech radio g4 pro. 6 of them. it gets about 100 par because it's at the bottom of the tank on the sand bed. they get 10 hours of light. 2 hours ramp up and 2 hours ramp down.

 

[John3]

Is your Red Sea colors dosing based on testing? I use them occasionally at a much lower usage.

Any change in lighting? White led channels up too high will do this.

 

[lilgrounchuck]

Do you test for everything you’re dosing with the Red Sea colors? What is your WC schedule? I was dosing an OTS micro supplement biweekly when I was doing monthly WCs, but I cut back to about 1/4 dose once a week only when I feed roids since I started doing 5-10% weekly changes. I didn’t test for everything in it, but my corals were starting to get p!$$ed off when I kept the same dosing schedule + the new WC schedule. My guess is that the new RC water had plenty of whatever they wanted and my dosing sent it over the top. After I a week of cutting back everything mellowed out and went back to looking normal.