coraline question

[marschgator]

My tank has been up and running for close to 8 months now and over the past month I have started to notice that some of my coraline is turning white. Is this normal or a cause for alarm? What could be causing it?

[Andrew]

Sounds like it's dieing. What's your calcium at?

[Randall_James]

lighting changes, water quality issues (post your parameters) and have you seen anything else distressed?

[tuckrule]

Def need to see water parameters. What is you're lighting, and did you buy it new?

[marschgator]

Yeah, my bulbs probably need to be changed I haven't changed them since I bought them 7 months ago.....I knew that was bad for corals and such but I don't have any so I figured I was OK, didn't know that would also affect the coraline.

[Randall_James]

what kind of bulbs do you have? most types will go 1 year...

Also your salinity looks low at 1.023, I like .025 better.
Have you checked your other water parameters?

[demonsp]

Yea whats your calcium, phosphate , carbonate hardness level at. And did you use tap water to fill or top off ?