Looking for some input/help; my tank is suffering a big GHA & Cyano issue

[Reef Pilot]

Originally Posted by gregzz4

I'm hoping to get a grip on this without incurring another recurring cost

How much per year do you think MB7 would cost?

Costs me less than $20/year for a 230g system. Pretty cheap insurance for a guaranteed preventative, if you do it right. Plus as I said, has many other benefits in your tank. Keeps the water very clear, esp if applied after some cleaning, etc where you might get some cloudiness.