UPDATE: I woke up this morning before my pump turned on to check the ph and it was 7!!!! This means that it increased all by itself in the rezzy overnight. Also, and this is a head scratcher, the ppm's increased by almost 100 to around 820 ppm. Raising ppm and ph?! Is this hygrozyme breaking stuff down into the water, or is the bacteria/fungi growing, maybe eating some of the organics like molasses that are in there?

I've put the ph down to 5.5, and will let it drift up throughout the day. You think with it increasing as it is that if I let it drift from 5.5 to 6.5 and then put it back down once, maybe twice a day, I will be good?
Thanks again for all your help! Keep it Coming!

And Rhizome, I am currently doing a test with RO water, my organics, and the hygrozome and bacteria/fungi, to see if there is an interaction, but nothing yet.

As for the metal, these are just those little screens/aerators that you put in hoses, made to be used with water, not rusty nails or something.

As for precipitate, some, I remember in the past seeing some brown cloudiness, but most noticeably its been the wash off from the hydroton. I've cleaned my pumps filter and it doesn't seem to be getting much more in it, but yes there is stuff in there.