Thank you both for responding,I've kept the tank as an almost
0 maintenance low tech tank for almost 4 years now,everything was stable
,no algae at all.Two weeks ago I decided to step it up a few levels,longer light cycle (8hr) started ferts,and CO2,now the tank is out of balance ,green spot and some BBA growing on all the old growth.I know I have shocked the ---out of it so it sounds like I should have a few more months of patience.
I have a drop checker coming in a few more days so that should help.
I am going to prune off some of the old growth to physically remove some
of the algae.
No pearling yet,it is set at 2 bubbles per sec.