I think the daily Excel dose+ daily water changes+blackout for 3 days will work, so you need to due a water change daily, add excel and have the lights/CO2 off.

Lot of work.

Prior to doing this: trim the plants that tend to get the algae caught in it the most. Very aggressively prune them!
Clean the tank well, pick out as much as you can.

Then do the above.

CO2 is critical, and in well grown in tanks without Amano shrimps, the hair algae can get a hold, I'm talking about Cladophora specifically here, you should see branching on the algae if it's Caldophora.

Do not play with CO2 once it's set well, unless you want to induce algae. I can get away with a week's worth of poor CO2 before things go bad.

You might see BBA in a week or two after Green hair algae, but the hair alga seems to always come first.

Regards,
Tom Barr