I've been battling a small hair algae problem, trying to prevent it from spreading. In response to the algae I've stopped feeding the tank, hooked up a small UV sterilizer, hooked up a phosban reactor and have been changing the media every 4 days, added polyester filter material to my sumps filter area (previously never used any mechanical in the sump) and toss it every other day, and finally huge weekly water changes. I've been taking my 75g down to about 4" of water each week. That's about 60g weekly. I'd say it's a good 80-90% of the water volume. It has been working very well and the water is spanky clear. 80% of the algae has recessed and very little Cyano.

My question is... I really like dosing B-Ionic and last night after a water change I reached for my jugs and thought, "why add supplements after such a large water change?" Anyone have any thoughts about that? The water change should hold the tank for a week or longer right? So am I just adding extra stuff to the water when it is not needed? Should I just test my ALK and CA until they begin dropping and then add B-Ionic to catch it up or am I safer just keeping the levels high?