My DIY Wavebox using some acrylic pieces to make the box and a Tunze 6000 stream. I also made my own wave controller to make an adjustable pulse. The circuit is based on the 555 timer IC that takes the Tunze’s +v from the DIN5 and chop it into pulses. The whole DIY project costs about $210 complete. Parts List: Tunze 6000 Stream: $200 Acrylic sheets: free Weld-On #16: $5 Electronics: $5 TOTAL: $210 Please visit my thread at reefcentral for more details: www.reefcentral.com xtmreef