Diatoms or worse kind of algae?

[Malupoo]

Hey guys, this last week I have had a break out of brown fuzz all over my plants and some of my substrate. I'm familiar with diatom outbreaks but this tank has been cycled for atleast 5 weeks now.
My thoughts were diatoms were within first stages of cycling....
The fuzz comes of rather easily but it seems to be browning my hair grass. I have lots of new growth of hair grass but all the stuff I bought is browning out and probably dying now.
It has attached to a few other plants but nothing like the hair grass.
Christmas moss has a fair bit on it too. Included a few pics


Current levels:
Amm: 0
Nitrite: 0
Nitrate: 10-20
Temp: 28


Thanks for any help

 

[Richardwm]

Post your light schedual and strength and tempature of lights. Do you use co2 and frets

 

[Malupoo]

Link to my light, I got the 60cm one
http://www.daluaaustralia.com.au/Productdetail/tabid/88/mode/details/pid/1/Default.aspx

Lighting- 7 hours a day ( very little indirect sunlight)
No co2 ( doing diy this week till can afford pressurized)
Only using root tabs at the moment
Ferts: was on this weeks to do list as well

 

[Richardwm]

Have you done any major water changes as of late. It should start to get better as you add co2 and ferts

 

[Malupoo]

Water change schedule is 30% every week on Tuesdays.
I haven't needed to to do higher as my nitrates haven't creeped up at all.

 

[Richardwm]

It could be a small diatom bloom. This is caused by high silicates in your change out water but it dosent seem likely I believe once you start dosing co2 and some sort of fertilizer you will start to see progress just don't drop photoperiod below six hours.

 

[Malupoo]

Thank you very much.
Should I take out the hair grass that's gone brown? It looks pretty much gone my only major issue is my apistos hide in it most of the time.

 

[Richardwm]

Give it a little time it didn't look completely gone mine went brown to about a half in above the root then bounced back. Trim it tho