I am fall-over-tired but a couple footnotes to end the week..
1) HUGE shout out of thanks to reefcanada/Jay for getting me some replacement glass for the sump. I'll try to take pictures of the fiasco/debauchery tomorrow as I try to replace the broken panel. In the end I went with Jay because he could also set me up with a panel so I can make an overflow for the 40g breeder I'm going to use as a temporary home for my carpets and clowns.
2) Gonna go for a pump feed for the skimmer for now. Easiest path forward with hopefully more benefits than pitfalls. I can always change things around down the road.
3) Got the Tunzes going in the main tank. Have two 6100's on Wavysea's sweeping back and forth and a wavebox. The wave is insane, almost 2". I'm worried that this is too much for my overflow so I'm anxious to get the sump repaired so I can try a proper flow test. Hopefully once the tank is aquascaped the wave will be less dramatic but in a worst case scenario I'm going to have to consider replacing the overflow with a shorter equivalent (or opting to do without a wavebox I suppose would be another option. That one doesn't appeal to me very much though.) Hopefully it will work out and I'm worrying for nothing haha. Time will tell on that.
I'll try to get some pictures and/or videos of the flow as it stands right now. I absolutely hated the effect at first when I had the 6100's on pulsing mode, but when they're just on full-bore all the time, it's actually a pretty keen effect. Guess I didn't need that multicontroller then (although I guess it's still handy to have the feed mode button if nothing else).
Although it's a good start, I'm not convinced it's enough for the long term however. I admit I'm looking at Coleus's Tunzes for sale thread and wondering how I can sneak a couple more Tunze's worth of balance onto my line of credit without getting a divorce haha. Those 3 ones from Pazil were gone so fast too. I looked at that this morning and but before I could even think in my head "I wonder if ....", they were gone. Haha someone's quick on the draw!
4) One of my Tunzes has these little impeller spasms when it's on feed mode. Every 10 to 20 seconds it does this quarter turn. I wonder if it's on purpose, ie., if it's to scare away fish who might be curious enough to poke their head into the now-not-spinning propeller housing. If that's the case then that's a good idea but what's weird is that only 1 of the pair do this. Does anyone know?