I tested the t5 lights today. Those 20.000K lights are really blue! They will look awesome together with my 10.000K HQI light. You can see the combination of the lights in the bottom three pictures at sneppevej.dk
My bulkhead should arrive tomorrow, then the cutting of the drain hole will be started (as soon as I’ve emptied out the tank)
I just found an incredible deal on a pump: 15,000 l/h (almost 4,000 gal/h) for only 88 Euro instead of the normal price of 269 Euro. This pump will be good for a display tank turnover rate of 62x which is a lot more than the 23x I have in my small tank now. That is a lot of flow, but searching the ‘net I’ve found people running even higher turnover rates, so I guess this pump can be used. Besides, the pump will probably not run the full 15,000 l/h, losses due to the plumbing will probably lower the output to 12,000 to 13,000 l/h which equals 49 to 54 times turnover.
I’ve also ordered 2 54W T5 lights with matching electronic ballast and reflectors. The lights I got are 20,000K and will be used in addition to my 70W 10.000K HQI, which is what’s in use on my small tank now.
I hope the lights, pump, bulkhead and standpipe are delivered by DHL tomorrow. As soon as I’ve got the bulkhead I can start drilling the bottom of the tank.