Seio Powerhead Questions

[AquaReeferMan]

Hello everyone, I have a 55g mixed reef. I was looking into getting 2 Seio powerheads (the m820's). That would equal 1640 gph. Would be be too much or too little? I have 3 maxijett 1200 and a powersweep right now I think thats around 1000 gph total. Any input would help. Also were would I place them? One high, one low, or equal? Here is a pic of my tank to help with the placement. I just dont think I have enough flow.

http://i42.photobucket.com/albums/e349/aquareeferman/Tank52.jpg

[andiruleu]

i have a 60 gal with 1 seio m820 and i was thinking of purchasing another one... right now its doing okay.. but i was afraid that there will be too much flow for some corals that dont like it? i would like some inputs too please. thanks

[HowardW]

I use 2 Seio 620s and 2 MaxiJet 400s in my 55 gal. and have plenty of flow.

[gath2]

I had a 1500 in my 100g cube, 30x30

I would go with the 2 1100's. You can always adjust the slits in the side of them to slow down the flow if you want.

[gath2]

Is the 125 and upgrade or an aditional? You might want to go with the 1500's if you are upgrading. You can always find ways to slow down the flow by pointing them at rocks or other objects to deflect the flow.

Also, is that sand or something larger for your substrate? The larger the more flow you can handle.
The tank also looks like mainly softies, so if you are sticking with that, then you don't need all that extra flow and the smaller models will be fine.

[HowardW]

Using two 1100s in a tank that size with fish and soft corals is way too much IMO.

[RichConley]

<a href=showthread.php?s=&postid=7341316#post7341316 target=_blank>Originally posted</a> by HowardW
Using two 1100s in a tank that size with fish and soft corals is way too much IMO.

Disagree.

Got 2 820s and 2 maximods (which put out more than the 1100s) in a 58.

My softies do fine.

[AquaReeferMan]

Yeah I only have 2 softies(finger, and toadstool) the rest are LPS and SPS. The last couple of months I added some SPS and wanted to up my flow. So I guess I will go with the 2 820 on either side, my powersweep in the middle and keep 1 maxijet 1200 running into my spray bar. Thanks everyone

[joeychitwood]

I agree that two 1100 Seios would be fine in a long tank like yours. Simply dial down the intake grates to get the desired flow.

http://reefcentral.com/gallery/data/500/3378Seio_820_011__Medium_.jpg

[HowardW]

<a href=showthread.php?s=&postid=7348782#post7348782 target=_blank>Originally posted</a> by joeychitwood
I agree that two 1100 Seios would be fine in a long tank like yours. Simply dial down the intake grates to get the desired flow.

http://reefcentral.com/gallery/data/500/3378Seio_820_011__Medium_.jpg


If you're going to dial them down to reduce flow, what's the point of buying a larger, more expensive, higher wattage pump to begin with?

I still think that about 40X per hr. flow is unnecessary for a tank with softies and fish.

[TWallace]

I have two 820s in my 55 and I have to dial them down because they're too much flow otherwise. I keep mostly zoanthids, shrooms, some soft and one LPS coral. No SPS.

[ddhuyn]

I have 2 Seio 2600 in my 100G tank and it is doing just ok. The flow rate is 2600GPH as they claimed, but the velocity of water jet is not what I wanted. So you need to have SEIO2600 for your tank instead.

[jdm01]

I have 2 Seio 1100's and 2 Rio 800's in a 90g. The Seio's are running full open and the flow seems fine. I have a few softies and a number of LPS. The softies seem to have adapted just fine to the flow.

[joeychitwood]

Originally posted by HowardW
If you're going to dial them down to reduce flow, what's the point of buying a larger, more expensive, higher wattage pump to begin with? If he buys the 820s and decides he wants more flow yet, he has to buy new pumps. If he buys the 1100, he has the option to run them at the 820 flow rate, or any other rate he desires.

Most people wind up increasing flow in their tanks rather than decreasing it. More flow equals less algae, more oxygen, more nutrient movement, etc.

[Craig Lambert]

I run two 820's on a 75G w ( softies, LPS and RBTA), dsb and it's plenty. (My return is only about 300gph). If you take the case off the flow is definatly more than 820. Just remember that you can forget about shutting them down to spot feed because they don't restart without help. It's a love hate relationship. Great flow, but they are very second rate.