coral turning brown

[clown25]

hey guys.. have a blue milli and its starting to lose its stunning color.. its somewhat turning brown... whats the reason for this... what will i do?... help me out.

 

[jackson6745]

could be from a reduction in lighting (shortened photoperiod or old blubs), or increased nutrients (too much fish poop). Be more aggresive in keeping your water quality over the next month and the color should lighten up for you.....ie more water changes, micron bags changed more frequently, skim wet, carbon etc..

 

[clown25]

i have pretty good lighting...i run my lights on for 7 hours a day.. should i increase it? water parameters are good.... should i put the milli where there is more light?

 

[clown25]

any more sps experts suggestions????

 

[michael chu]

hey crown
sorry to here that
change place ...i mean mid or high place to set up

 

[Josh]

What lights do you have? 7 hours does not sound like enough unless you have 400 MHs or some serious 250s.

 

[clown25]

i run 250watts 15k DE aquamedic.... ill try to change its location .. lets see what happens.

 

[jackson6745]

i have pretty good lighting...i run my lights on for 7 hours a day.. should i increase it? water parameters are good.... should i put the milli where there is more light?

"Good" is not a good explination for your water quality. What are your nitrate and phosphate readings? Cal and alk and magnesium? How often do you clean an algae film off the glass? Ho do the rest of your SPS look?

Even after testkits read 0 there is a sub level that you cannot test for but you can see with observations to algae growth and coral color

In general corals turn brown because high nutrients spur zooxanthellae growth (brown in color) inside the coral.

 

[clown25]

all water parameters are within normal conditions... ll my sps are doing very good except the blue milli... i do 20% water change every Sat.i clean the algae film of the glass almost everyday.

 

[pecan2phat]

But if you "clean the algae film off the glass almost everyday", then your nutrient levels might be higher than you think.

 

[jackson6745]

But if you "clean the algae film off the glass almost everyday", then your nutrient levels might be higher than you think.

Word up :afro:

 

[Josh]

Also, it might just be me, but a weekly 20% water change sounds like a lot. This is probably what is covering up the die off from the algae you clean off the glass.

What sort of skimmer are you running and how is it doing?

Do you have pics of the other SPS in the tank?