Optimal flow configuration for 55 gal DSB

[androal]

I'm adding supplemental circulation to a NEW 55 gal tank setup.

The tank includes a 28 gal sump w/life reef 600 gph overflow paired to a mag 7 return pump.

I have not set it up yet, but I am preparing for 7" DSB in both main tank and sump - because of the types of animals I hope to eventually put in the tank - once it's cycled.

After reading some rave reviews about the Tunze Streams, I have been sold on the product concept, so I am considering purchasing a pair of Tunze 6055s w/7095 multicontroller.

I understand that flow characteristics are very unique to each tank's configuration, and will vary depending on several factors, especially substrate-type, and configuration of live rock / corals in the tank.

I also understand that the flow will likely need to be adjusted as the tank changes over time.

That said... is there much, if any, consensus or opinions as to the "optimal" configuration of live rock aquascaping and power head positioning for a 55 gallon tank that maximizes flow?

I am considering mounting one unit on the middle of the right-center side of my tank, and directing the flow upwards and towards the back of the tank so the flow banks off the back side of the aquarium.

I am considering mounting the second unit in one of the Tunze faux "rock" enclosures, positioning it directly on the tank-bottom of the front-left-corner the tank.

 

[birdman204]

Re: Optimal flow configuration for 55 gal DSB

....That said... is there much, if any, consensus or opinions as to the "optimal" configuration of live rock aquascaping.....

There are numerous books, posts and informative sites on the web regarding this aspect, so I will keep it brief.

The LEAST amount of rock resting on the sand is going to be something you want/need to shoot for in order for your DSB to be efficient in such a small tank.

I might even suggest setting up a framework of PVC or something in order to elevate ALL your rock off of the sand.

~Bird~

 

[androal]

yes, I have found tons of general information on aquascaping

...but I was hoping for more specific feedback on both:

1) Optimal power head placement

2) Tried and true rock arrangements (e.g. stacked along the back of the tank, vs. an island in the middle vs. use of corners, etc...)

...given the limitations imposed by operating withing the confinements of such narrow tank dimensions.

and

...given the inevitable sand storm that I am inviting by attempting to flow so much water through this confined space.

The LEAST amount of rock resting on the sand tip is helpful!

A PVC framework suggestion is also something I had not yet considered!

Is there hope for such a solution or am I on destined to fail by attempting such vigorous water flow within such a small tank setup?

 

[birdman204]

If you have the ability, aim your pumps output towards the top of the water, With the pump placement near the bottom.
This should alleviate some of the downward flow that will inevitably move your sand.

As far as rock arrangement...
Keeping them off the sand, or a minimal amount touching the sand is the goal. You want to have general water flow able to reach all areas of the sand, that is, you don't want to have a stagnant area of flow if possible.

Regarding flow and sand movement...
My original tank was setup, ~90 Gallons... with two Tunze 6100's running on opposite schedules, at full blast during the day. Minimal sand movement was acheived (in my case) by placing the pumps in the rear corners, and directing the flow from the rear corner across the front of the glass. The key was to give the flow maximum amount of distance BEFORE hitting the glass. In the 4 foot tank, the pump outputs hit the front wall about 3 Feet across from the pump location. If any of that makes sense .
~Bird~

 

[androal]

...so, if I am interpreting your description of the "optimal" aquascape to maximize flow through a DSB 55 gallon tank, the following image provides an aerial perspective of what you are talking about:

http://reefcentral.com/gallery/data/500/182438Untitled.bmp

In this layout:

1) Power heads are located in the rear-bottom corners of the tank, directed upwards, and banking off of the front of the tank about 3 feet down. (flow represented by blue lines that cross in the center of the tank)

2) Brown areas are where the LR would be piled up in three separate formations (Ideally, these rock piles would be suspended 1" above the DSB using a pre-fabricated PVC supports structure underneath)

Aesthetic opinions aside, Is this aquascape a "optimal" configuration for maximizing flow without disturbing the DSB too much?