Placement of 2 150's in 84x24x30 (265 Gal) and other questions...

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Nov 12, 2014
Douglas wrote
Hello and congrats on the launch! I have a couple questions for you if you'd be kind enough to address...

I'm about to complete the build on my 265 (2 corner overflows) mixed reef tank and have decided to go with the Gyre rather than my 2xMP40 (back to front) and 1xMP60 (side to side). With this said, and reading the other posts on 72"+ tanks, I understand you are suggesting 2xGyre 150; no problem. Here's my question(s):

To keep the manufacturers design for directional water flow, along with making sure both overflows are swallowing the same particles, waste, and other nasty’s, what is your best suggestion for placement? One on both sides or two in the back?

Also, if suggested to place one on each side, how do these pumps work in concert with a two-pump setup? Is one set for a "reverse" flow pulling FROM the surface rather than PUSHING towards the surface (like grabbing the push off form the other one when the flow weakens)? If not, than what’s the effect on the surface, and below, when the surface flow, and undertow, meet one another? Is there a master/slave program and are the controllers able to speak with one another (wireless or cable)?

With regard to future updates and such. As mentioned earlier with a proposed spring release to work with Apex, will this be a software release that can be downloaded for current customers, and programed in the control module for the GYRE, or something added on the Apex side? Is there a different interface that will be needed from Apex to control the pumps? What I am primarily interested in is this; will I have to upgrade, or purchase, anything new from you to make this integration work as you're proposing?

Thank you very much for your time and attention and congratulations once more on this wonderfully new invention!
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11 Answers
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Nov 12, 2014
Carlos agent wrote
We have found that the best water flow setting we get on 6' tanks is both gyres on the side. One running horizontally on the upper part (pushing water along the surface) and the other running vertically on the back of the tank (or attached to the overflow). If you set them to pulse at their own individual time (without sync), they will create some nice random strong flows that will take care of any dead spots in the tank.

In longer tanks, we have noticed that the short pulsing does not work as well as the long pulses. So you may need to play around with it.

The basic controller does not have a master/slave mode but the advanced controller coming out in the next couple of months will. The Advanced Controller will be fully compatible with the gyres just released. All you will need to do is swap the controller and you will be all set and ready to go.

Apex compatibility is at the top of our list and it is something that we will be working with Neptune after the advanced controller is released.
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Nov 12, 2014
Douglas wrote
Carlos, thank you for the amazingly fast response.

So it's been found that on tanks longer than 6", 7" in my case, it's "best" to create two different directional flows? This being created by placing one 1x150 parallel to the tank, on the end, centered, and towards the top of tank while the other 1x150 is placed perpendicular on the other end towards the back, about midline depth? Do I understand this correctly?

With regard to master/slave and apex, your comment, "All you will need to do is swap the controller and you will be all set and ready to go", will CV be doing a buyback or credit to off-set this cost for the controller that becomes obsolete in this scenario? Next couple months? Is that a realistic deadline please?

Lastly, if the 170 was available, would you still recommend 2x150's or would you then suggest 1x170?

Thank you again.
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Nov 12, 2014
Carlos agent wrote
Both pumps are on the same end of the tank. Unlike other pumps, the gyre has no problem in creating flow back to the pump (hence the name Gyre) so putting them both on the same side will not be an issue.

In terms of the Advanced Controller, you will need to purchase the advance controller. There will not be a buyback program. The price of the Advanced Controller has not been set yet. There is no time set for the Advanced Controller so I am not going to speculate on timing. All customers will be notified via our website and Facebook page.

I always like to have multiple pumps so I would recommend 2 XF150's over a single XF170.
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Dec 02, 2014
Metoo Nguyen wrote
Hello Carlos

The same question, I had 2 Gyre for my tank. But I don't know how to use both of them in my tank? Could I use One horizontal, one vertical on the right side of the tank.

My tank: Mix reef 180 gallon ( 61" x 26" x 24")

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Dec 02, 2014
Carlos agent wrote
Yes, that is how we have ours set in our larger system. Both on the side panel (end panel really since we have a peninsula style tank) one running horizontally in the middle while the other is running vertically on the same side. They both are running pulsing mode and it creates some amazing flow patterns.
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Dec 02, 2014
Metoo Nguyen wrote
Dear Carlos

Thks for your answer, and could we use both are run Gyre mode ?
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Dec 03, 2014
Carlos agent wrote
I am sorry. I don't understand the question.
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Dec 03, 2014
Metoo Nguyen wrote
One horizontal, one vertical on the right side of the tank, both run Alternating Gyre Mode in the same time ?
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Dec 04, 2014
Carlos agent wrote
You can do that. Just need to test and see how it works out in your tank. Every tank is different (size, sand, aquascaping) so you need to try and see how it works out for you.

In our experience, Alternating Gyre Mode works best when the gyre is vertically. Horizontally does not work as well because by default, Reef Tanks are not as tall and if you have a sand bed, when the gyre runs in reverse you really need to slow it down substantially so you don't create a sand storm.
Jul 06, 2015
Batu wrote
Hi Carlos,

Few queries Re- the recommendation of running two gyres on the same side of the tank - one placed horizontal and the other one vertical;

Do you recommend any alteration to the default a-b rotor cage arrangement or keep it as it is?

Do you keep the vertical one as low as possible to make the flow clash with the return flow of the horizontal pump on the lower level of the tank to create random flow? Am I getting the logic right?

I tried this method for a short period but the corals seem to be getting flow only one direction which I don't think very healthy for them, do you think I needed to wait longer?

I tried using alternating gyre with 2 pumps on horizontal position each end of the tank at 30secs intervals but it seems they have a sec or two difference in run times as they start overlapping each other after 5-10 mins.
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Jul 06, 2015
Carlos agent wrote
I would recommend running them in opposite sides. One horizontally and then a vertical one on the other side on the back of the tank. That would give you the best flow and would solve many of the issues you mentioned above.

In terms of placement, the vertical can be placed high or low. It all depends on if you have sand and if there are any obstacles along the back of the tank. You also have the freedom of rotating the cages inwards if you need to change the flow a little bit on one of both sides of the gyre.

If you use them in opposite sides, then you can run them in constant or pausing mode. You probably will not need to run them in AGM.