Help to eliminate algae

[nijat11]

Hello everyone!
I need a help to eliminate green fuzz algae.
My tank s 1250l + 250l sump. (250cm x 70cm x 70cm)
My filration is 10000l/h pump and 2x maxspect XF330. Inside sump KOI filter mats.
My weekly fers 15ppm NO3, 2ppm PO4, 8ppm K, 0.3ppm FE, 0.1ppm Mn I dose daily.
Last 2 months, weekly water change 50%, before that once in 2 weeks.
CO2 start 3 hours before lights go on.
My lights 4x chihiros universal wrgb 1200, 24x Daytime Matirx Sun Pro modules. Light runs around 65%. Par at substrate at average 90-100 umol
My problem is I had blooming of fuzz algae on all leaves, probably baceuse I had lean dosing, since I increased ferts, trimmed and replaced infected plants, it became better.
But still i see fuzz algae on a lot of leaves, I`1m feeling that I will need to restart tank from 0.
Will appreciate all your advises!
Thank you in advance.

 

[Naturescapes_Rocco]

Share some pics! It might help us identify.
That's not crazy strong lighting, so I don't think your light is overkill.

Years of experience have shown me that green hair algae types frequently happen from a lack of NO3 or CO2. Not always, just most of the time.
Short, fuzzy algae on edges of leaves is usually a sign of too long of a photo period (don't exceed 7-8 hours) or a lack of nutrients in the water column.

Long, skinny green strands are almost always (in my tanks at least) CO2-related issues.

So yeah, post pics and we can help!

 

[nijat11]

Share some pics! It might help us identify.
That's not crazy strong lighting, so I don't think your light is overkill.

Years of experience have shown me that green hair algae types frequently happen from a lack of NO3 or CO2. Not always, just most of the time.
Short, fuzzy algae on edges of leaves is usually a sign of too long of a photo period (don't exceed 7-8 hours) or a lack of nutrients in the water column.

Long, skinny green strands are almost always (in my tanks at least) CO2-related issues.

So yeah, post pics and we can help!

Thank you for your answer. My photoperiod is 7 hours. I bought Hanna CO2 kit, grabbed water samples from different parts of aquarium. was showing 50 ppm everywhere. I decreased it, did testing for another 2-3 days from different parts of auqairum (bottom, middle, top, corners) 30 ppm everywhere. It is night currently here, I will post some photos tomorrow. Thank you again!

 

[nijat11]

One of images that i made a week ago.

 

[nijat11]

Just to give more context, this was ongoing for couple of months, at some point I have decided to purchase ORP meter as additional help device. After connecting and calibrating it showed ORP around 180. I did big water changes, mass trimming of infected leaves, substrate vaccuming, moss removal. After that ORP increased to 350, now at averages ORP runs around 420-450.