dark grean powder algae

Thicker means it is working. Clean it completely, every 5 days, for now.

wht do umean by completely
remove also the inbetween the double screen (make it white)???

A single screen would be better, especially for dark algae. But for now just clean everything including between.

so that means i am going to start a new screen???

Would be best. Otherwise, just clean everything off of your current screen, including the dark stuff between the screens.

so how long would the new screen will take to make algae again????
and does mechanical filtration affects the working of scrubber???
does any one run algae scrubber in his system need to addy pyhtoplankton or what the scrubber produce is enough???

7 days

Only affect feeding of corals and small fish.

Depends what you are trying to feed.

this is the maximum cleaning i can get
the rest of algae is stucked between screens
is that cleaning enough?? or it will make problem??
[attachment=0:24ovks83]phpRisCpKPM.jpg[/attachment:24ovks83]

Looks good. Do that every five days for a few weeks and see if green starts.

hi santa
i changed my whole scrubber and make it in a bucket
new screen and added two extra bulbs

no i have 3000 litre /h pump
2 compact flourcesnt 2700 kelvin 30 watt on each side
so it is all 60 watt on each side + 120 watt as whole
so is that better and if it is powerful when it will be excepected to see the green algae?
do i have to add some alga from the old one ?
and wht is the tips do i have to do ? when to clean now ?
[attachment=2:bx7a79kl]1.jpg[/attachment:bx7a79kl]
[attachment=1:bx7a79kl]2.jpg[/attachment:bx7a79kl]
[attachment=0:bx7a79kl]3.jpg[/attachment:bx7a79kl]