better late then never!... Thank you for all the great reply's!
Here some details:
Tank dimension: 57x57x28
Lightning: 18x 54watt t5 giesemann.
Skimmer: Bubble king 300 deluxe extern
return pump: Red dragon 8500
Water movement: 5x tunze classic 4002 1 x tunze nano stream
Calcium reactor: DIY pvc 26 gal.
Automatic osmose refill: 30gal. also for water changes
Chiller giesemann polaris 2000.
I want to upload some high res. photo's but it wont work (size to big)