Random Flow Generator Show Off Thread - Show us your Tank!
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Z3speed4me
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Interested to see if anybody has a answer to this my 525 does the same and probably have them almost an inch under the water. The backs of the generators have some very slight gap’s which I believe it helps create the flow but that is where the air is getting sucked in from the surface of your tank I cannot say if these were filled if it would stop or if they would even still function properly.
Z3speed4me
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Just to be certain the eBay ones are legit there are ton of copycats out there now selling replicas
OP
OP
There are a few easy ways to help with solve this issue - shoot us a PM an we'll be happy to help you trouble shoot.
OP
OP
We do have a few resellers offering The Random Flow Generator nozzles on Ebay - you'll want to make sure that you are buying a genuine "Random Flow Generator Nozzle", as any similar looking 3D printed nozzle does not do what the RFG nozzles does.
The easiest way to tell, is to look for he "VCA" logo on the side of the nozzle ;-)
OP
OP
We created RFG Installation Support & Trouble shooting our R2R forum to help users that have this issue. There are a few easy tips that can help that may not to be immediately obvious but can make a world of difference. Check it out ››
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OP
OP
That's awesome! Love inset RFG
It's going to look amazing once the coraline algae takes hold and turns that skull wall shades of purple.
Z3speed4me
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Didn't even notice the blenny at first!
Jim sciascia
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I own a red sea max s650..... Do you know what size the 4 recirculation outlets are and what size the main return outlet size is?
What size generator and adapters would I need?
Thx
What size generator and adapters would I need?
Thx
Mykesocalreef
Active Member
Do these just randomize flow or do they boost pressure?
OP
OP
for the circulation pumps on the back wall of your Red Sea MAX system, you'll want to take a look at the 16mm to 1/2in adapter and a 1/2in RFG nozzle
https://vividcreativeaquatics.com/shop/12-rfg-nozzle-with-red-sea-max-adapter/
for the return line, its the same size as the Red Sea Reefer systems, but it sits just a bit higher up. So you'll want to take a look at either one of the Ultimate Return Line Upgrade kits. The amount of flow to your return kine is how you'll detriment which size to go with, but in general, most with the 650 go with the dual 3/4in size
https://vividcreativeaquatics.com/s...ate-xxl-return-line-upgrade-25mm-to-34in-rfg/
OP
OP
That's a great question - the Random Flow Generator Nozzle's main purpose is to randomize the flow coming out of the nozzle, as opposed to just accelerating. It does share some similarity with the standard educator and panductor nozzle which are designed to increase velocity and volume.
The RFG Nozzle on the other hand, will increase the volume of water being moved but unlike an accelerator, it doesn't push the water in just one direction - rather it randomly redirects the water . The net result is a wider, random flow pattern.
Here's an older video from when we first launched the RFG nozzle a little over a year ago. It shows the difference between an accelerator and the RFG
Mykesocalreef
Active Member
Thanks for the clarification! I have a 3/4 return split in two. Looking at the Eheim compaction 5000(1320gph minus 5’head) would this be good to push the water? I have a 40 breeder NEM tank that needs more flow without the PH’s..
OP
OP
I can't seem to find a head pressure chart for that pump other than that max head is 11' - so assuming you'll get half the max GPH (+/-620GPH) to the nozzle, I think you might actually be better off with a single 3/4in RFG nozzle instead of splitting it.
Check out this demo video of a single 3/4in RFG in out 33 gallon demo tank at approx 500 GPH - complete with fake anemones and everything
The main thing about RFG is that you will get better results out a a single, properly sized nozzle at the Optimal Suggested flow or higher, then you would out of dual nozzles at lower then the suggested optimal flow ratings.
Mykesocalreef
Active Member
If I am understanding correctly. For the eheim pump you are suggesting to cap a return and only run one? Is there a return pump you would recommend or a GPH to handle two RFG's with 5' of head loss?I can't seem to find a head pressure chart for that pump other than that max head is 11' - so assuming you'll get half the max GPH (+/-620GPH) to the nozzle, I think you might actually be better off with a single 3/4in RFG nozzle instead of splitting it.
Check out this demo video of a single 3/4in RFG in out 33 gallon demo tank at approx 500 GPH - complete with fake anemones and everything
The main thing about RFG is that you will get better results out a a single, properly sized nozzle at the Optimal Suggested flow or higher, then you would out of dual nozzles at lower then the suggested optimal flow ratings.
Mykesocalreef
Active Member
Maybe this pump would do the trick?I can't seem to find a head pressure chart for that pump other than that max head is 11' - so assuming you'll get half the max GPH (+/-620GPH) to the nozzle, I think you might actually be better off with a single 3/4in RFG nozzle instead of splitting it.
Check out this demo video of a single 3/4in RFG in out 33 gallon demo tank at approx 500 GPH - complete with fake anemones and everything
The main thing about RFG is that you will get better results out a a single, properly sized nozzle at the Optimal Suggested flow or higher, then you would out of dual nozzles at lower then the suggested optimal flow ratings.
VarioS-8 Controllable DC Pump (2700 GPH)
OP
OP
If you want to run two RFGs and get the best kind of flow they can provide, then the Varios-8 would be a better choice. It has enough range, even at 5ft head, tat you could dial in the kind of flow yo want.
One of the neat things about the randomized flow the RFG creates, is that you can speed up or slow down the directional changes the nozzle creates based on the velocity. For example, higher flow rats create a more rapid, chaotic directional change in the flow exiting the nozzle, while lower flow rates slow down the direction change creating a more sweeping randomized flow pattern.
Sea MunnKey
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Hey Antonio,
Purchased and have yet to install a 3/4' RFG nozzle on my old 90 gallon. Question is does it improve more or beneficial if I were to add a second 3/4" RFG nozzle as I've got a 1200 gph recirculating DC pump? Was thinking of placing them on each corners (of tank width) and directing flows to front center.
Thanks in advance.
Purchased and have yet to install a 3/4' RFG nozzle on my old 90 gallon. Question is does it improve more or beneficial if I were to add a second 3/4" RFG nozzle as I've got a 1200 gph recirculating DC pump? Was thinking of placing them on each corners (of tank width) and directing flows to front center.
Thanks in advance.
OP
OP
if you can place them on opposing corners that would be ideal . But, the main thing you'll want to consider is the total GPH you an provide to the nozzle. That would be total GPH to the outlet the RFG Nozzle will be attached to, AFTER any head loss and without the nozzle in place.
if you can provide each nozzle at least the Optimal Suggested Flow (around 400-500 each), then I say go for a second one. If not, then you might actually be happier with flow out of a single RFG nozzle at or even a little above the Optimal suggested flow rate. In that case, i would set it up to point from one back corner to the opposite front corner.
hope that helps.
