Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
Were it me, I would leave the plant's in the tank ,remove the media from the filter(s) and place the media in a bucket of aquarium water or dechlorinated tap water and dose the tank with 3 tablespoon's (per 10 gal) of 3% peroxide and let the filter's circulate the water in the tank for 15 minutes.(no more ,no less)
Then perform 50 % water change,place media back into the filter's and start em up.
Should see the BBA,BGA,start to die off within a day or two.
I also would reduce light period by an hour or two,(most folk's use too much light for too long)and step up filter maint to once every three week's,reduce food's entering the tank.
If you will do these thing's, then the algae won't find condition's suitable,and plant's will do better, and this is what you want.
Dose of peroxide suggested should not pose problem's for fishes/shrimp's.