I started bio pellets 3 weeks ago using 25% of the recommended dosage. I have not seen any reduction in the algae on the sand bed or glass. I'm running about 2 tbl spns of rowaphos in a reactor that I change every 3-4 weeks. I'm still getting undetectable results on phosphate and nitrate but the appearance of the tank tells me they are present in some form. I've been dosing MB7 and KZ Zeo Bak every other day at half the recomended rate. I dose MB7, then Zeo Bak 2 days later, then back to MB7.
Other observations are that I'm getting little difference in skimmate. I have a very small patch of cyano that's started and plan to get some Special Blend to combat that issue. Water is crystal clear, more clear than ever. Since the appearance of cyano, I have reduced the flow in the reactor a bit to just a gentle tumble. We shall see what happens over the next few weeks.
So far you sound like you are doing everything right. Did you have undetectable phosphates when you started running the pellets? And what test kit are you using?
