Will I need two fleece rollers?

[danreef55]

Planning a 72x30x24 bare bottom tank with a large basement sump.
If I run two Vectra L2 (3100gph) pumps are approximate 50-60% power so over 3000GPH.
Fleece rollers handle approximately 2300 gph. I can fit two rollers but not sure if I need them.

 

[tzabor10]

Planning a 72x30x24 bare bottom tank with a large basement sump.
If I run two Vectra L2 (3100gph) pumps are approximate 50-60% power so over 3000GPH.
Fleece rollers handle approximately 2300 gph. I can fit two rollers but not sure if I need them.

Perhaps maybe bypass the roller with part of the return. You might want to keep some of the suspended nutrients.

 

[reefsaver]

What you're describing will work, the RedSea Reefmat 1200 is rated to 2380 GPH and those pumps will provide more than enough water turnover for the system you want to build.
Really it comes down to if you would like to change out filtration every day, or replace fleece rolls.
In my personal opinion. I'd say hell yeah.

 

[danreef55]

Thanks to you both great points. Appreciate the input!

 

[Jekyl]

I don't even have one or a sump for my 90g and everything is doing just fine.

 

[danreef55]

Glad to hear you are maintaining a successful reef with no mechanical filtration. I will be running bare bottom and like to keep a pristine reef. Going for an SPS dominant tank.

Thanks and happy reefing
Dan

 

[gastone]

I'm thinking you'll be running at what 10, 12' of head loss?

I think even running two pumps you'll be well short of 2300gph. I'd say start with one roller and adjust as necessary.

 

[landlubber]

I think you'd be fine with one.
The same logic could be used with a skimmer, they catch only a fraction of the water passing by them.
If money is no object then its an even easier answer.

 

[Lbrdsoxfan]

There are other rollers than red sea that are designed to take as much as you can throw at them flow wise. But as said above with the typical piping head you'll have I doubt you'll see that much flow.

 

[danreef55]

Yes 10' is the approximate distance. There will be two XF250 Gyres internally. What if I run them at full capacity?

 

[danreef55]

I really want to use DC pumps. The Abyzz A200 is another alternative

 

[C_AWOL]

I run 2 on a 470 that uses 2 L2s at 100%.
One vectra feeds the refugium and display and the other feeds reactors, uv, and display.
Valve 1 is fully open while valve 2 is likely around 3/4ths-1/2 closed.
Generally it's easier to do so than running just 1 due to the drain size inlet being only 1" vs say 1.5"
You can push more flow in theory by feeding both ends (using a 1" union on the opposite end) but that will exhaust the single roll way faster/prematurely and they're not inexpensive.
My usage between both rolls is pictured as well

 

[danreef55]

I run 2 on a 470 that uses 2 L2s at 100%.
One vectra feeds the refugium and display and the other feeds reactors, uv, and display.
Valve 1 is fully open while valve 2 is likely around 3/4ths-1/2 closed.
Generally it's easier to do so than running just 1 due to the drain size inlet being only 1" vs say 1.5"
You can push more flow in theory by feeding both ends (using a 1" union on the opposite end) but that will exhaust the single roll way faster/prematurely and they're not inexpensive.
My usage between both rolls is pictured as well

A bit off topic but ......
Considering running two 2" main return lines and then split each into two 1" just below the tank. So 4 tank inlets.
I believe running 2" causes less head. Does anyone have any experience.

 

[C_AWOL]

I don't think it will be necessary to do 2" returns at all.

1.25"-1.5" (if vectra l2s) all the way until any manifolds or splits would be the most sensible and less heavy+easier to find mounting equipment for (pipes with water get heavy and have to pull on something)

Even for my larger tank that uses 2 red dragon 230ws I stuck with 1.5" and have no issues with excess head pressure.

 

[danreef55]

Thanks for the feedback C_Awol
I WISH I could get Red Dragon pumps.

 

[YOYOYOReefer]

Why. It use a better pump for the application like a panworld or an iwaki? Imo dc pumps don’t hold up to head pressure nearly as well

 

[danreef55]

I could never fault an Iwaki pump with a Japanese motor. I used them for many years and they are built like tanks. I want the control a DC pump affords. Also looking at VarioS 10

 

[C_AWOL]

If you're looking in the price range of a varios 10, a red dragon eco 5 series would also likely fit the bill and have pressure rated models.

Royal Exclusiv Red Dragon 5 ECO 200 Watt 13.0m³ (3500 GPH) Highpressure

Features: Saltwater resistant M5 grade 2 titanium screws Saltwater resistant parabolic rubber feet for acoustic decoupling Extreme low noise brushless DC-delivery pump with external power electronics High efficient technology, Sine Wave for very quiet running Inlet and Outlet complete with DIN...

www.aquariumspecialty.com

Happens to be on sale still too!

 

[YOYOYOReefer]

I could never fault an Iwaki pump with a Japanese motor. I used them for many years and they are built like tanks. I want the control a DC pump affords. Also looking at VarioS 10

What control does a dc pump afford?. You realize it’s just a return pump, a simple ball valve can be used to adjust

 

[danreef55]

but it reads ship from the warehouse direct.

manufacturer shows backordered with no eta