It's interesting you mention that. First, I should point out that the picture is exceptionally misleading. The "gold" is really just the warm (3500K) light reflecting off the shiny bits. That said, if I look very, very closely I do see 1 or 2 tiny flecks of what may be pyrite, about 0.5 mm across. Lowering the pH may actually be a desirable side effect of any small amount of pyrite as the Seiryu will have the opposite effect. But you definitely have me thinking. I have some geology field guides that I may take a look at to determine what this really is.
Just stumbled across this thread.
Very nice job on everything so far. NASA would be proud of you!
Subscribed and looking forward to seeing where this goes.
Thank you! I'm sure I'll be asking for advice going forward!
Ok, consider me impressed.
I don't know what half the stuff in the stand is supposed to do. Give us a virtual tour of this masterpiece.
Oh, and get some hose clamps around the tubing attached to the barb fittings.
Yes, I'll have to put my amazing (read: terrible) MS paint skills to the test and make a flow diagram of what the hell is going on there. I usually have to do this anyway so when I'm on vacation the tank sitters know what they are looking at.
Hose clamps. Yeah, I know. there will be very little pressure on these, so my concern is quite low, but better safe than sorry I suppose.
Can tell you are a fellow reefer
We tend to complicate things, huh?
In researching, I'm wondering if any more Seiryu is a good idea. My original thought was to dry start and build a nice carpet. But without knowing exactly how this much stone will raise the pH, I wonder if that is a good idea. If I already have plants established, then flood it and realize I have a lot of water chemistry work to do, will that destroy what will take probably a couple months to build dry starting?