new 170 gallon tank

[Eddieg]

hi I'm new to this
I have installed a 170 gallon tank
I have put in a clc of snails and crabs and 8 blue green chromis to start it off.
but in the last couple off days the live rock has got covered in brown stuff
what should I do

 

[lapin]

Do nothing
Stuff will grow
It is prob diatoms and it will go away in a week or 2

Oh and howdy welcome

 

[Eddieg]

Hi
I have never had a fishtank so diving in here at the deep end. I have 8ft x 2ft x1 1/2 ft tank

 

[Jeffcb]

Welcome! just let it run for a while.

 

[Eddieg]

hi I'm new to this
I have installed a 170 gallon tank
I have put in a clc of snails and crabs and 8 blue green chromis to start it off.
but in the last couple off days the live rock has got covered in brown stuff
what should I do

Hi thank you all for your advice. I have done some checks on the water they are
Hi wullie
I have run some tests on the water can you tell me if everything is ok

Salinity. 102.4
Temp. 25.6
Alkalinity 7.4
Calcium. 515
Amonia 0.5
Nitrate 50
Nitrite 2

Thank you all

eddie