6 x Tunze Turbelle Stream 3 (6150) Controllable (660 to 3962 GPH) $300 each
THESE THINGS ARE AMAZING! (5 are in original packaging)
https://www.aquariumspecialty.com/tunze-turbelle-stream-4.html
2 x Tunze Turbelle Stream 6155 Controllable (1050 to 3950 GPH) $250 each
These are more powerful...
How often do you check on your reef tank? (Apex, GHL, live stream, etc)
I keep my apex tab up all day at work and check on it every hour or so. Mainly terrified of seeing another flood alert but also checking parameters from automated testing.