Having power-washed the rock, and found about 6 metric tons of stuff-I-didn't-want-in-my-tank deposited on the floor, I started to play around with how the rocks ought to be positioned. The goal is to keep some open swim-space for the fish, to provide some tunnels and allow for line-of-sight to be broken, and to provide plenty of places to put corals.

I also wanted to keep to the minimalist style, although I'm not sure I actually managed that. For 100 lbs of rock, it sure takes up...

So the BRS rock arrived today. I can't do too much with it until the weekend, but I've put it outside ready to be seriously powerwashed before I start trying to come up with ideas for aquascaping...

[CENTER][IMG]http://0x0000ff.com/imgs/fishtank/rock-pre-wash.png[/IMG][/CENTER]

To give an idea of scale, the large flat circular rock with all the protrusions on it towards the upper left is approximately 16" across. It's going to make a wonderful cap to a rock-island...

So, for the last week or so, the RO/DI system has been churning out RO/DI water, I've been mixing it with salt in the mixing tank, and then storing it in the NSW tank. So far, I've got ~70 gallons of pure RO/DI water and 290 gallons of NSW water ready to go. That's a total of ~360 gallons, and my RO/DI meter started to say it was reading 1ppm on the output.

Now this is a dual-stage DI-resin system, so there are two, not one, media chambers full of DI resin. I'm thinking that ~360...

Ok, so nothing major happening until Tuesday/Wednesday/Thursday when the deliveries arrive, but figured I'd clean up some loose ends...

The outlets from the media filters (GFO and Carbon) are from 1/2" RO/DI-type pipe, and have a lot of curve in them due to being shipped in a coil from BRS. I wanted these to dump directly into the sump immediately below the media-filters themselves, so yesterday I cut off some small slivers of 1" piping, and superglued them to the inside...

Well, maybe not porn - this is a pretty simple setup, so let's call it a '15 certificate'

As mentioned, I'm waiting for some elbows and adapters to finish off the below-sump plumbing, but here's a look at where it stands right now:

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If it's not clear, there are 3 horizontal pipes on the left-hand side, the...