I have decided to get a Tunze Wave Box 6215. I have watch the video and read the reviews and think that this would make a wondertful addition to the bespoke aquarium.Dimensions: L125 x W113 x H 300mm (L4.9 x W4.4 x H11.8in.).
Immersion depth: approx. 280mm (11in.).
18 W on average at 18 V, 26 W at 24 V,
power supply unit: 100 – 240 V / 50 – 60 Hz).
Magnet Holder up to a glass thickness of 19 mm (.74 in.).
For tanks from 200 to 1,500 litres (52 to 396 USgal.).