Ok let's talk substrate. Wait who talks about substrate? You just dump some sand in and call it a day right? Anybody who has had a high flow tank like I run, almost always ends up infuriated with their sand. I've gone from sand, to tile, to bare bottom, to multiple other considerations. So what are we going to do here?
Well the short answer is we're going back to sand, but this requires more explanation. I always figured with a high flow tank, if I wanted to add something to the tank I could just glue it onto a piece of rubble and place it somewhere. LOL, nope, those little pieces of rubble, even good sized 5-6" pieces will blow straight across the tank in a heartbeat. Did I mention I keep high flow?
So in the past I've used the Carib Sea Dry Aragonite Special Grade. This stuff was supposed to be touted as resistant to moving around by many reefers. Now don't get me wrong, it is more resistant to moving then sugar sands, but at grain sizes of 1.0-2.0mm this stuff still flies all over the place the first time you think about turning up your powerheads.
So we're stepping up our grain

. Tropic Eden makes a larger grain sand that's still not as large as something like crushed coral, but substantially more hefty than my old go to. It's also still an Aragonite sand which I feel has it's benefits.
We're going to use a mix of two things here.
For starters we're going to go with the increasingly popular Tropic Eden Reef Flakes at 3.0mm:
We're going to mix that with the Tropic Eden Reeflakes Grand Select at 4.5mm:
I've ordered (2) 30pound bags of each and will probably mix 2 bags of grand select with 1 bag of regular into the DT and hope that gives me that 1.5-3" I'm looking for. If not I can always add a little more, but that should be more then enough. The last bag will go into the Fuge section of the sump where I prefer to run closer to a 4" sandbed.