Can anyone help me

[gbrumfield2013]

only part of my rock has coralline on too??

 

[Freakyyfort]

First thing ppl that know more than I are gonna ask is water parameters. So post those along with your question. It looks to be hair algea to me.. second question is gonna be how old is the tank?

Post those and someone will be with you shortly

 

[SantaMonicaHelp]

High phosphate in the water will prevent coralline from growing.

-JN

 

[gbrumfield2013]

The tank is cycled about 6-8 months. I don't know the all the parameters other than standard three which are all low. I also have a decent phosphate reactor and still the rock are only partially getting coralline algae growth :S

 

[Diesel]

Still we need to know some more.

Phosphate?
Nitrate?
ALK
CAL?
MAG?
How many fish?
What you feed and how many times?
Corals?
Do you feed your corals?
Skimmer?
Sump?
What kind of sand?
RODI from your self or do you buy it.
Do you know your TDS from your RODI?
Wha kind of salt you using?
How often and how much you do a water change?
Lights and how far above the tank?
Do you know your PAR?
Are you allergic for peanut butter

 

[Freakyyfort]

Still we need to know some more.

Phosphate?
Nitrate?
ALK
CAL?
MAG?
How many fish?
What you feed and how many times?
Corals?
Do you feed your corals?
Skimmer?
Sump?
What kind of sand?
RODI from your self or do you buy it.
Do you know your TDS from your RODI?
Wha kind of salt you using?
How often and how much you do a water change?
Lights and how far above the tank?
Do you know your PAR?
Are you allergic for peanut butter

Hahaha what I'm talking about