I got this blackout treatment from Tom Barr. He is a popular guy in planted tank. He has done a lot of research in planted tank. I think he invented EI dosing.

Basically:

Day 1, clean, trim leaf with algae and do a 50% WC. Dose excel, switch off co2, no fertz, and 0% light, cover it with blanket/rubbish bin plastic.
Day 2, black out
Day 3, black out, You can feed during blackout but some fish might not able to see it.
Day 4, WC 50-70%, light on for 3 days, heavy dose of co2 and dose fertz.
Day 5, light on, fertz
Day 6, light on, fertz
Day 7, Repeat day 1 - day 7.

Usually need 2 cycle, can be more. That'd kill algae effectively. I'm doing it for the first time, so maybe you can wait to see my result first, I use it to get rid of my green dust algae, those stick on glass.

some ppl said some of their plants melted during this treatment but it does kill algae.

Green dust algae. The one stick on glass. I'm having an outbreak. Some said let it stay for 2-3 weeks for the full life cycle and it will go away, but I don't think I can stand looking at it for 2-3 weeks, so I try the blackout method instead.

Did that for a few weeks, it sticks back after a few hours. I can't do a massive WC because I have quite many shrimp in it. Based on my experience, if I did 80-90% WC, some of my shrimp will die. So, enough is enough.

Yes, that's what I called GDA outbreak. GDA is different from other algae, its zoospores  float in the water column, so if you clean the glass and don't do water change, it will stick back to the glass. It's an endless cleaning.

For my situation, it's pretty bad, I can see it forms within hours and within 2-3 days, the glass is green. Well, there's some green spot algae anyway, so it's good to try the almighty blackout method, that's the whole fun of planted tank isn't it? haha

hi guys ,
kindly interested to have planted aquarium , like you all setup

i have 1 feet aquarium , do i really need CO2 ?

depends on what plants you want to keep

but the grass totally need co2 rite?

need a recommended shop for fresh plant shopping
around KV area
prefer the most variety display (window shopping)

p/s:
tired of getting none satisfied plant condition buying online

I like these two:

- Alive Aquarium in NSK Kuchai Lama (reasonable price)
- 88 pet mart in pandan indah (everything is more expensive)

They normally restock on Wednesday, best time to visit is after wed.

Ok, some updates re the blackout method.

Light on! It's very obvious that Green Spot Algae on my Hygrophila Pinnadifida are all gone! That's good. For Green dust algae, I'll need to wait for maybe a few hours to days.

The water is crystal clear! fish are happy to see me, shrimps are okay (I only lost one on the first day of blackout, probably due to large WC).

Side effect, I can see a stem of ludwigia is melting, a small patch of my MC is browning, well that can be fixed, so it doesn't bother me, all I want is get rid of those stubborn GDA.

So, light's on day for the next 3 days, if GDA doesn't return, then I won't do another cycle of blackout. I'm dose the EI regime, heavy dose of CO2 (4 bubbles) and 8hours of light.

Nice. But where is your green dust? Your rock is still in its original gray color. I thought with a bad case of green dust, the rock would be green

good to hear the good news. May i ask what species of plant is in the middle and on the right ?
and finally, nice tank!