<b>Arconom</b>, I contacted a guy named Kevin on Marshreef.com today, and he's still making the reactor. I'm waiting to get the price with shipping, but he told me it was $59 for the unit itself. Biophos appears to be aluminum-based phosphate remover, but that is all I've determined up to this point. I did quite a bit of reading early this morning before the sun rose.
<b>Rick</b>, that is a good point. I talked with CaribSea about my system, and how I've been battling PO4 in my tank a lot for the past year, how I've always used ARM, and Phosbuster Pro - both are their products. The guy I spoke with asked what the PO4 in the tank was, which I told him was .5, and then he asked what the effluent was, which was 2.0. I didn't think about it loading up in the reactor just like it would LR and LS, but that is logical. FYI, I didn't ask for more media for free, because I bought a container at MACNA and have it here ready to use. My question was why is this media leaching out PO4 at all. Maybe you came up with the answer, but I'll still send in the samples as requested.
<b>dgasmd</b>, I would actually like to test it as you suggested. So I'll give that a try. However, to get an accurate test, do you still test dripping effluent or do you leave it open to get decent flow through the media? Maybe I'll take the entire reactor apart and clean it with vinegar, to remove any traces of PO4.
Btw, I had a light over a part of my sump that made algae grow on the inside of the reactor. Would that be a potential source? It was growing in the tubing that recirculates, in the effluent tubing, and even on the walls of the reactor itself.
My reactor is set up with a pH Controller (thus the reason I like that little effluent reactor), releasing 1 bubble per second. The controller is set to pH 6.7, and the effluent dripping out is maybe 3 drops per second, or more. I just tested the alk in the tank this morning and it was 8.3 dKH. Calcium was 415 two days ago.