More water flow for SPS?
- Thread starter filippo
- Start date
downhillbiker
New member
the k-nano wont do a thing for you, you wont even notice it. you already have 2 k4's right? as you know they are very gentle flow and if you position them lower in the tank, about 8" from the bottom, and point the up at an angle you will be happier. This will allow you to get another k4. you should have that much flow, a k3 at minimum. they will be putting the highest flow at the top of the tank where SPS will be, and lower indirect flow lower in the tank, where LPS, anemones and polyps will be. Here's a pic of how my powerheads are set up:
downhillbiker
New member
no problem. i think the K4 is what you need. you will be very happy. the koralias are very efficient too, the MJ is too powerful of flow and not efficient at all.
BTW. add a smiley face in your original posts when joking. i thought you were serious about the nano.
BTW. add a smiley face in your original posts when joking. i thought you were serious about the nano.
filippo
Member
lol i did it on porpuse to see what you guys would say ("is this dude serious? All this talk about more GPH and then he goes w/ a nano. He's nuts 
)
You know, I truly like my K4s, but they're too big. I wouldn't want to add another one in my 90. I was looking at something more compact and not as expensive as the vortechs.
)You know, I truly like my K4s, but they're too big. I wouldn't want to add another one in my 90. I was looking at something more compact and not as expensive as the vortechs.
Salty Prata
Member
Filippo, I have a thought. Instead of adding another bulkey pump into your main system why not beef up your return pump? It doesn't cost $450 like a Vortech would. It's not how many gallons per hour you can blow around in system, it's how much water you can turn over total. I run 1000gph return pump.
Salty Prata
Member
Do you have an overflow box?
Salty Prata
Member
Yea, I get your set up I'm talking about a hang on the back overflow box. E-bay's has 1200gph for $45. This way you don't have to drain your system and cut another hole in your tank.
Salty Prata
Member
I just measured mine and it takes up six inches in the back. Is your tank flush against the wall?
TikiDan
Premium Member
If you position your powerheads at the top of the tank pointing up you will actually get more water movement at the bottom of the tank. Create motion in the tank kind of like a gyre where the pumps on the right are aiming towards the front and the pumps on the left are aiming towards the back. By putting the pumps like this the water works with itself to create more flow. At least thats what Jake Adams told me. Try it out and see. You may not even need another pump, just rearrange the ones you have
TikiDan
Premium Member
the advantage of placing them at the top is it takes less energy to move the water at the top then it does at the bottom so by moving the surface water with less friction you will actually speed up the water at the bottom so you get more water movement through the whole water column. Does that make sense?
TikiDan
Premium Member
I just made this for a visual of what I am talking about
The way it was explained to me was that the sand causes friction that slows don the water at the bottom of the tank, so if you position the PH at the top it will create a faster water movement that will then take the lower part of the tank with it. Pretty much like a wind driven current can move tons of water by just blowing on the top layer.
When water hits the rockwork it is slowed down considerably and creates a turbulent spot on the other side where the water re converges onto itself.
I hope I am not making this more difficult than it needs to be.
The way it was explained to me was that the sand causes friction that slows don the water at the bottom of the tank, so if you position the PH at the top it will create a faster water movement that will then take the lower part of the tank with it. Pretty much like a wind driven current can move tons of water by just blowing on the top layer.
When water hits the rockwork it is slowed down considerably and creates a turbulent spot on the other side where the water re converges onto itself.
I hope I am not making this more difficult than it needs to be.
Last edited:
downhillbiker
New member
i would agree with this. but with the pumps lower in the tank and pointing upward you get maximum distribution with the koralias. if you put them at the top the flow will be wasted when it hits the surface.
i too have mine one right and one left. and face them across the glass front and back. the bowfront really helps too, the water seems to really like hitting the radius surface.
i too have mine one right and one left. and face them across the glass front and back. the bowfront really helps too, the water seems to really like hitting the radius surface.
filippo
Member
fantastic explanation. both makes sense.
my only worries is that by having powerheads at the top pointing down, it "slowly" moves all the sand creating "holes" in the sand.
the way i have them right now, they're at the top pointing straight.
by the way, i tried my bro's seio ph (used 1 week, then put away), and guess what? it didn't even turn on - great. i'll never buy a seio myself.
my only worries is that by having powerheads at the top pointing down, it "slowly" moves all the sand creating "holes" in the sand.
the way i have them right now, they're at the top pointing straight.
by the way, i tried my bro's seio ph (used 1 week, then put away), and guess what? it didn't even turn on - great. i'll never buy a seio myself.
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