brown on rocks?

[Galantra]

Not sure what just happen. I added in another 6 pound of live rock looks alittle like lava rock to me it has a redish look to it but since i added in this rock all of my other rocks have this brown color on also on the glass of the tank is something wrong or is this normal?
Here are some images but doesnt really shows that much

 

[dorkfish]

If it's a new tank, then the brown algae (diatoms) is completely normal, actually I haven't setup a single tank (I've put about 12 tanks up over the years), freshwater or saltwater where i didn't grow diatoms after the initial cycle.

If it's an established tank, it's possible that the rock could have added silicates to the water, wich is what diatoms feed on.

 

[RONCGIZMO]

Never mind

 

[Galantra]

Look at it now it is getting worst what should i do? I did had a clown fish that died unsure about why also

 

[dorkfish]

Look at it now it is getting worst what should i do? I did had a clown fish that died unsure about why also

How old is the tank?

 

[Galantra]

it isnt old i would say i have it up for about two almost three months now

 

[5xevy]

What are your water parameters? Do you have any recent results?

 

[Galantra]

Well i been constantly checking i will do a check now but its always been right on point with everything. This is manly why i am confused

 

[ryuku32]

that rock doesn't look very lively to me. 3 months it should be full of colors, eh?
was the new stuff cured? my diatoms lasted from week 2.5 to week 4. double water change with RO/DI and i put carbon in for 4 days.
def wanna see the ammonia/nitrite/nitrate though.

 

[BIGgourami]

looks cyano bacterial to me. if it was on the sand i'd say you need more flow, but it's on the rock and next to what seems like some pretty healthy corals, so it's not that. i've been having trouble with that too.