There are three main ingredients to a successful reef tank. 1. Lighting 2. Filtration 3. Flow. All these items need to be in proper balance for things to work. Lighting feeds the photosynthetic needs of zooxanthellae in corals. Filtration affects the water quality and health of corals. Final, water movement allow the delivery of nutrients and the export of waste, from the water column, to and from the corals.
For water movement, I’m using several different pumps to try and create a random, high flow environment. I’m not happy with the amount of flow I currently have and will need to upgrade, in the near future, to increase it.
I’m using a Sequence Reeflo Dart Gold as my return pump. I love this pump, powerful and relatively low wattage. Attached to the outlets are penductors to increase the velocity of water coming from these nozzles. Seaswirls are used to automatically move these nozzles back and forth to create redirected flow from the front of the tank.


I’m also using an Ecotech Marine MP40W pump, connected to the back glass, in pulse mode to generate some wave action. With all other pumps turned off, a noticeable wave is formed. When everything is on however, the wave crashes and the effect is minimized. In the future, I’m planning on added a second pump on the other side and running it on an opposite wave mode. This should create a nice wave across the entire tank. The latest generation of these pumps are much quieter than when they first came out.


Finally, Tunze 6065′s are used on the backside of the tank. These are currently attached using their magnet mounts. I’lll be attaching these to DIY rotating mounts, similar to Seaswirls. There’s a link to the DIY thread on Reefcentral. In the future, I plan on upgrading these pumps to controllable Tunze 6105′s. You can’t go wrong with Tunzes!

Picture of the DIY swirler stein from Miwoodar:
