Brown and bubble algea

n_rummelhoff

New member
I have had my tank set up for about 6 yrs and have had normal cycles but out of the blue I'm have alot of brown algea and bubble algea. I don't wanna use chemicals if possible. I just installed a ro system today so hopefully this will help on water changes. I run 3 metal halides. 1 is on for about 3 hours a day and 2 are on for about 7 hours a day. I also have 2 6ft blue and 2 6ft 10k bulbs that are on from bout 930 or 10isham to about 830pm. This has not changed over the last year. All my levels are pretty much at 0. Are there any natural ways to kill this off or just let it run its cylce. Any help would be great. I did just replace my pump on skimmer so I'm not sure how long that was broke. Any help would be greatly appreciated.
Thanks
 
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