Coral turning white

DJMonelove

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Good morning please help me my corals are turning white they were so healthy and all of a sudden they are beginning to turn white

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Hey, and thanks for joining

in the process you will get all kinds of these questions while we try to figure out what is going on wrong and how to turn it... and we have all been through it

Right now age of tank since cycling, water change schedule, light, pH Alk, N and P and will be a good starting point

Best of luck
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Welcome!

I agree with @Lavey29, we will need tank parameters. The most critical are salinity, alkalinity, calcium, nitrates, phosphates, and temperature.

What lights are how strong are they?

Direct flow is not good because the coral will close up.
 
We need a full set of water parameters as already said, but it could be something as simple as a temperature fluctuation, flow, something bothering it, sometimes it just happens and it can be very frustrating
 
Dont see what is reffered to as bleaching however when coral are unhappy-bleaching-pouting, it us due to stress . . Stress from too much light and water flow and lack of nutrients.
You were asked about parameters. The typical parameters for your tank are posted below. Moderate light and water flow are key for LPS coral.

Temp 77-79
ph 8.1-8.3
salinity 1.025
nitrate < .10
phos < .04 - .06
Ammonia < .03
mG 1300
Alk 8-11
CA 400- 440
 
Welcome to R2R! As others have said, we need more information to provide any meaningful help. How long the tank has been set up, basic water parameters and a little detail about the tank set up at the least.

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