HFP75's - 55 Galllon

[hfp75]

You have a good point, I will take a few pics of the tank....

UPDATE on the denitrate coil.... ( I really do hope this works better than a DSB!!!!!!!!!!!!)

I added in another inline ball valve to allow better control over flow restriction. It worked well, I was able to bring down the flow just a tiny bit more.

Today I tested the coil return water and the tank water and here is the results.... (no new H2O changes either)

Tank - NO3 - between 15-20 (just under a 20 by my eye)
Coil - NO2 - looks like a ZERO to me.

http://i101.photobucket.com/albums/m...ps981c46ac.jpg

There have been no noticeable changes to my Ph as I check my Apex for its readings (graphing weekly).

So, it looks to now be working. I will give it another week, just like it is and see how my tank NO3 adjusts. Can I combat NO3 production (from the tank) and stay at a 15-20? or will I rise up to a 40? Either way the coil will help. Once I know that the coil is 100% functional & stable I will consider turning it up just a tiny bit if I need to. Maybe next week or a bit after that.

I will try to get some pics of my tank and a current stock list.