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tian
11-12-2012, 11:16 PM
It has been 1 month and my screen is still growing green film algae, nothing like what you guys are getting those thick hair algae.

Screen size: 6 X 6 inch
Light: CFL warm white 20W
Distance of light: 2.5 inch from screen

Have check my nutrient level and below are the numbers

PO4: 0.0496ppm (Hanna)
NO3: 25ppm (Sera)

If there is a need for pic i will try to get 1 when i am off from work.

Thank!

Regards,
Tian
inky
11-13-2012, 12:11 AM
How much are you feeding a day? That size screen (when lit both sides) can take 3 cubes a day. Is the flow correct at 35gph(US) x 6 inches (total=210 gph(US) ). Is it lit both sides?
Garf
11-13-2012, 02:51 AM
Mine took 8 to 10 weeks before it started to get hairy. How long are you leaving it between cleanings?
SantaMonica
11-13-2012, 06:44 AM
Is the screen roughed up canvas with holes?

Hours of light per day?
tian
11-13-2012, 08:55 AM
Is the screen roughed up canvas with holes?

Hours of light per day?

I am using the canvas that is used for stitching as shown in the guide.

Lighting is at 16hrs per day.

Screen is rough up with hole saw. Forgot to add is that the screen is only lid 1 side.
tian
11-13-2012, 08:55 AM
Mine took 8 to 10 weeks before it started to get hairy. How long are you leaving it between cleanings?

i am cleaning it every 10 days
SantaMonica
11-13-2012, 10:03 AM
Pics
tian
11-15-2012, 08:13 AM
Sorry for the later reply, busy with work.

Pics as requested, please advice if this is normal growth.
SantaMonica
11-15-2012, 09:18 AM
That is not film algae. It is green hair algae. Looks good.

Clean at 14 days.
tian
11-15-2012, 03:27 PM
That is not film algae. It is green hair algae. Looks good.

Clean at 14 days.

Thanks!

Can i know why i am getting such slow growth? Or this is normal. For some tank?

For my nutrient, light or flow i should have sufficient for good thick growth.

Thanks!

Regards,
Tian
SantaMonica
11-15-2012, 03:53 PM
Stronger light will help, but when nutrients come down it will get better.
tian
11-23-2012, 06:55 AM
i discover that the cyano in my tank is starting to come back.

they are growing on the rocks and sand only. is this because of the leaching phosphate from rocks?
SantaMonica
11-23-2012, 01:08 PM
Maybe.

Add a light to the other side.