Need some additional pumps?

[Mark Bianco]

Roger,
First off thank you for all your help in setting up my 210gl setup 72 long. I put the two 6105's in the back corners pointed just past the center of the front wall of the tank and run them from 30% - 100% using the narrow flow nozzle. This creates a super flow it's so good that in top portion of the tank that you can actually see a vortech of spinning water in the center. This will be great for sps.

Now onto my problem. I listened to all and instead of going with tried and true crushed coral I went with a oolite sand. In order to keep the sand in place I needed to also angle the slightly upwards, leaving the front lower section of the tank with little flow. I have attached pictures of placement.

What I am looking for is a suggestion for a pump / pumps that I can add in the front corners that have very little flow. What is the lowest flow rate possible with one or two nano streams.

Thanks
Mark

 

[Mark Bianco]

 

[rvitko]

The other issue will be glass thickness as the smallest pumps won't include a magnet strong enough for the glass on a tank of this size. A couple of 6045's or 6055's if you wanted to go controllable, will work. The 6055's out of the box work on up to 1/2", 6045's only up to 3/8".

 

[Mark Bianco]

Thanks Roger,

As usual a very prompt response. Much Appriciated

 

[Mark Bianco]

Roger,

I have a thought and wanted to run it by you.

For my situation if I replace the sand in the corners with crushed coral would it be possible for me to use two 6025 and put them in the 6025.250 rocks in the front bottom corners of the tank, or do you still need to use the magnets?

Mark

 

[rvitko]

That could work, my only concern would be the pumps sucking in sand, they would need to be propped up on a short stack of live rock to avoid that.

 

[Mark Bianco]

Roger,

I think I have decided I will go for the 6045 and the 6025 rocks. They say its adjustable, I did download the manual for this pump and read it but for some reason I can not see any information on how its adjustable is it listed in the manual? Perhaps I missed it... Any explaination or beter yet a diagram or pictures would be greatly appriciated.

Thanks again
Mark

 

[rvitko]

It has a simple mechanical adjustment, basically a tube within a tube and you adjust the flow by sliding it back and forth and it clicks into position at 150 gph increments.