Hammer Coral Not Growing

[Erich01]

I have a tank that's about 6 months old. I have several montipora doing great and coralline algae starting to grow on rock. However, none of my hammers are growing. Does anyone have any ideas as to why this might be?

 

[Dburr1014]

Parameters not right
Light
Flow
To new in tank
Made out of plastic

Just to name a few reasons

 

[Erich01]

Should I try reducing the light. Its at 80% blue, 15% white. They are at the bottom of the tank. Also they are not dying but just not growing.

 

[Dburr1014]

Should I try reducing the light. Its at 80% blue, 15% white. They are at the bottom of the tank. Also they are not dying but just not growing.

Post all parameters you know and tested for.
Tank picture and coral picture in WHITE light so we can see what's going on.

 

[Erich01]

You can see from the first pic the SPS are doing great... its just the LPS have a growth stunt.

 

[Erich01]

You can see from the first pic the SPS are doing great... its just the LPS have a growth stunt.

salinity 1.026, alk 9-11 (dose every 2 days), Ca 450

 

[Dburr1014]

Are the sps actually growing?
Do you know your light par? I don't think you should reduce the light.
Po4 and no3 levels? They imo, like a little more than sps.
Nothing sticks out at me why no growth. How long have you had them?

 

[Erich01]

Are the sps actually growing?
Do you know your light par? I don't think you should reduce the light.
Po4 and no3 levels? They imo, like a little more than sps.
Nothing sticks out at me why no growth. How long have you had them?

like 3 months

 

[Erich01]

yea phosphate and nitrate are good

 

[Shirak]

yea phosphate and nitrate are good

Good?
Latest test results would be more informative.

 

[nereefpat]

salinity 1.026, alk 9-11 (dose every 2 days), Ca 450

How big are the swings when you dose? 2dKH swings?