Green blue hairy algae on leaves

How do I control those hairy algae on my plants. See the image...
I have my lights on for 10 hours per day. The tank isn't in sunlight and there's a good amount of plants.

I've read that a high concentration of nitrate and Phosphate could lead to algae however in my tank, the nitrate level never seem to get above 5. I do water changes every week for around 30%.
The Po4 test always come back with 0mg so I don't think I have an issue there...

Ph is 7.6, NH4, NO2 are 0 so that's all normal.

I have 9 otos but they don't seem to like these... They made great work of the brown algae but they don't seem to like these new algae.
I also have some nerrit snails and they don't bother with these algae either...

When I do water changes, I try to trim those hairs as much as possible but it's not easy to cut without cutting in the leaves.
Any thing else I can do to get rid of these or to control the growth?

 

Have you tried any peroxide dips? I would trim off as much algae as you can off and do a hydrogen peroxide diluted dip

 

No... never heard of that...
Where can I get hydrogen peroxide... guess it will be difficult to get in these times...

 

Usually you can find it in pharmacies, it can be used as disinfectant for minor wounds and scratches. Stings badly and foams, but does the job. Also leaves white blotches to clothes if drops.

 

and how do I use it...
I've seen recommendations around adding it directly to the tank which I don't know if I will dare..
Other resources I see they clean the plant with a dilution of the product or let it soak in a bath with the product for a while, but for how long?