Stream placement

[Deepsea2005]

Hi Roger,

I'm already asked you before. However, I change my tank size, so I ask you again.
I have two 6000 streams + muti-controller.

What is the best position to place two 6000 streams in the tank 60x30x25h with 4" DSP? This tank will be a loaded SPS tank.

Is it just my eyes but it seem the stream is smaller than before (compare to my friend's stream)?
How can I get the most out of the streams???

Thankyou.
Ben.

 

[Bojan]

Place them opposite of each other, one pump rear-left corner and second pump rear-right corner. Output of one pump (depend of your reef) have to be directed parallel with rear wall of aquarium, but output of second pump have to be directed diagonally, if you will use idea with changed Tide mode.

According to my opinion TIDE mode is not the best solution with multi-controller and Tunze Stream pumps. If you program multi-controller to Tide mode, pump will be switched off and there is a problem. When pump is switched of, it is possible that small fish will enter in pump and will be damaged when pump will be switch on again.

But on the other hand Tide mode (6 hours) together with pulse mode (waves) is the most natural combination, so it is wise idea to made a little change in micro-controller in such way, that when pump have to be switched off it is only set to minumum.

 

[rvitko]

I think Bojans idea is good. I would use pulse mode as he suggests. I would set it up so one pump is at 30% when the other is at 100% and they switch every few seconds. It would also be worth trying a straight back to front flow from both pumps- given the width of the tank.

 

[Deepsea2005]

Thanks Roger and Bojans.

Ben.

 

[bjolly]

When pump is switched of, it is possible that small fish will enter in pump and will be damaged when pump will be switch on again.

is this correct? how small would a fish have to be to be in danger of this?

 

[rvitko]

3/4" in diameter and of a type that will enter a pump- blennies and gobies.

 

[bjolly]

uh-oh....may have to rethink my powerhead plans. Is there any way to screen them off to protect the fish?

 

[rvitko]

No, as long as they don't turn off though it is not a problem so on the electronic ones they can be turned down and don't have to turn off- they can speed up and slow down instead. Now, I can tell you we have a solution coming soon but it will not be easily retrofittable to already existing pumps and it is a very rare problem anyway- all the same we have addressed it and it just will take sometime to implement.

 

[bwanders]

Roger,
I'm at least three months from being ready to "add water". Should I wait for this new innovation? I'm on backorder now with a couple of 6100's and a multicontroller (and Osmolator). Don't know if I want Tide mode but seems like its a good option in addition to the 30/100 pulse. Or, although difficult to retrofit, it can be done and for a reasonable price?????

 

[rvitko]

Well, for the 6200 we had to beef up the driver and while we were at it we added a new feature where tide mode and food timer set off a 1 rpm mode that just is enough to scare the fish away. We won't make more than one driver so all pumps from early summer on will have this but we are still testing it. It is also likely that if we have any remaining drivers on hand they would be used to make smaller Streams until they were used up but it isn't like we ever have piles of them on hand anyway. A driver costs $85 or so and that is what would have to be changed to add this feature. Myself, I prefer pulse mode so it isnt a big issue for me as I don't really see the logic in turning my pumps off when I can slow them down.