what is wrong with my monits?

[danrobberg]

i dont know whats wrong with my montis. my sunset is loosing its orange. its turning to white or gray but the polyps are still green, and my superman which you cant even tell is a superman looks absolutly awful. but my montipora sitosa looks great. my cal is 440 alc is around 8 dkh all other perams are good except phosphates. last week i had them tested at 0.6, i added gfo and am having them tested again tomorrow. i do a 10 percent water change with rodi every other week using oceanic salt. i keep my halides on 8 hours a day and actintics on for 12. i dose only the alc part of b ionic two part every day, and add strontium weekly. i run a g2 skimmer in the sump with carbon and now gfo and liverock. and i have plenty of flow in the tank. is there anything i should be adding or doing different. any help diagnosing the problem would be greatly appriciated. thank you

 

[NyReefNoob]

where is magnesium ? what are you using to test with ? personally MH is on too long, i ran mine for 5 hr's a day, no spot in th ocean gets direct light more then a couple hr's a day, any other corals being effected ?

 

[danrobberg]

some are doing great some are so so. i bought two maricultured acro colonies about a month and a half ago. one has about two branches with tissue left on it the other is starting to die from the bottom. but a few other acros are growing nicely

 

[danrobberg]

ive had than sunset monti for about 4 months and it just started to look like that. the superman has been strugglling for a while

 

[NyReefNoob]

did you treat the new corals ? how far down are corals from light ? did all this start after the changing of phosban ?

 

[jbird69]

were these corals showing good growth and color in your tank prior to this problem?

 

[danrobberg]

theyre about 10 to 12 inches from the top. the sunset started about a week or so before i added the gfo. the superman has been having trouble for quite some time now

 

[danrobberg]

the sunset had been growing very nicely il try to post a pic of it when i got it and the date.

 

[danrobberg]

this is when i bought it on may 22 of 09

 

[danrobberg]

pic didnt post sorry

 

[danrobberg]

il try again

 

[danrobberg]

any other ideas?

 

[danrobberg]

correction to earlier post, my halides are on for 6 hours a day

 

[jbird69]

how old are your bulbs and why do you only dose part B?

Have you changed your flow configuration? Have you tried repositioning the corals in the tank?