Need some help...

[justin01]

Just to find out why my birdnest suddenly like this?

 

[hinovak]

Most likely something is off chemistry wise. My first thought would be to check your alk.

 

[hybridazn]

Def check alk, birds nest while hardy can be the first to go if something is off. Any other sps in the tank? How do they look?

 

[justin01]

Others look ok...alk is 9..

 

[hinovak]

Can you remember anything you did in the last three days that it might have changed things up, sometimes the change happens a couple days before, and the sps show the issue a couple days later

 

[markalot]

Others look ok...alk is 9..

It's change in Alk that can wipe out birdsnest. I killed mine off accidentally raising Alk from 7.5 to 9 over a few days.

 

[justin01]

Did nothing in the past few days..actually i also duno why is bleaching...growing well in my tank when i bought it is small frag....target feeding twice a week...

 

[markalot]

Did nothing in the past few days..actually i also duno why is bleaching...growing well in my tank when i bought it is small frag....target feeding twice a week...

How often do you test Alk?

 

[justin01]

Everyweek...