Another water movement question

1911_guy

1911_guy

Member
75g (4 ft tank)
Running 4 MJ 900's and an overflow from a MagDrive 18 (at 5 1/2 ft head it's probably around 1200gph)
The overflow is a 3/4" pvc pipe spraybar with 4 holes drilled for max velocity flow.
I still have dead spots on the sand like mad. What's the deal? I have more powerheads and pipes than rock, no not really but it's driving me nuts.
I was thinking of getting one or two Tunze turbo PHs. I want decent flow with no dead spots but geez I don't want to have 800 little powerheads in there.
Any suggestions?
 
1911_guy

1911_guy

Member
Originally Posted by Tankyou
wavemaker
How does this help with dead spots?
A wavemaker adjusts the output to create different currents. It won't add current to places that aren't already getting it.
 
1911_guy

1911_guy

Member
I am very interested in the Tunze powerheads. Can you explain how the nanostream works differently than a MJ PH? I know they offer ALOT more flow in GPH but what else?
 
moneyman

moneyman

Member
The NanoStream uses propellers instead of impellers. Thus, they move a lot more water.
The NanoStreams also have a wider output spout than the MJs. So, your output water is more gentle. Your fish can swim right into the current.
 
1911_guy

1911_guy

Member
Okay, so my concern is still the deadspots. Will these Nanostreams help eliminate deadspots? Would you suggest the Stream model or Nanostream model. I can only afford 2 of the Stream 6060 models. That would be equivalent to 4 Nanostreams in output.
 
moneyman

moneyman

Member
Stream 6060 will be good for you. Both of them will create a sandstorm in your 75. But, you can put them on a timer (not wavemaker) and alternate them every 30 minutes.
Also, I suggest the NanoStream. These guys put out less water but they have a smaller profile. They dont look like a zit in your tank like the normal Stream and SEIO. The NanoStreams come standard with magnetic holders.
A less expensive alternative is 2 SEIOs M1100. Each will move 1100 g/h of water wide-beam. You can also get the SEIO controller for these pumps to really create chaotic currents.
Tunze has a forum on ReefCentral. The moderator can help you decide if you choose the Stream or the NanoStream.
What you need is raw pumping power and total chaos to get rid of deadspots.
 
tankyou

tankyou

Member
Originally Posted by 1911_Guy
How does this help with dead spots?
A wavemaker adjusts the output to create different currents. It won't add current to places that aren't already getting it.
Are you sure?
 
1911_guy

1911_guy

Member
I just read some poor reviews on the Seio, especially when using them with a timer. Does the Nanostream work well when being turned off and on again repeatedly? I was thinking of getting 2-4 of them and using them with my coralife timers. I'm running out of outlets.
I have 4 to choose from:
1-protein skimmer
2-return pump
3-timer (lights)
4-timer (powerheads)
I was thinking I can use the light timer for one Nanostream and all the rest on the other timer.
 
moneyman

moneyman

Member
Originally Posted by 1911_Guy
I just read some poor reviews on the Seio, especially when using them with a timer. Does the Nanostream work well when being turned off and on again repeatedly? I was thinking of getting 2-4 of them and using them with my coralife timers. I'm running out of outlets.
I have 4 to choose from:
1-protein skimmer
2-return pump
3-timer (lights)
4-timer (powerheads)
I was thinking I can use the light timer for one Nanostream and all the rest on the other timer.
SEIO is not designed to be on a standard wavemaker or timer. That's why you need to get the SEIO controller. The controller throttles down the SEIO to 30% instead of turning it completly off.
The Tunze NanoStream and Stream comes in 2 versions: Fix and variable speed. Unless you are planning to purchase the Tunze controller, dont get the variable-speed version (NanoStream 6055, Stream 6000, 6100, 6200). Keep the on/off state of the (Nano)Stream to at least 30 minutes (30 on, 30 off, 30 on, 30 off, etc).
Another thing you can try is to mod your MJ900. It'll cost you about $25 each maxijet. The mod will turn your narrow-flow MJ into a 1500 g/h wide-flow monster. You can then put your moded MJ on a wavemaker or timer.
 
1911_guy

1911_guy

Member
I think I'm going with 3 Nanostreams for use with a timer. Setting 2 at 30/30 and the other at 45/45. This should create some chaos. I will just have to manually turn my lights on/off. Might still keep one or two MJs in there and move the rest to my QT or just keep for extras.
I plan on building a 350-400g system in about 3 years. How do you maintain good flow in a tank of that size without running a million powerheads? Use higher rated ones or what?
 
moneyman

moneyman

Member
You cant go wrong with Tunze.
For 350-400g, I would have a close loop on an Ocean Motions.
Originally Posted by 1911_Guy
I think I'm going with 3 Nanostreams for use with a timer. Setting 2 at 30/30 and the other at 45/45. This should create some chaos. I will just have to manually turn my lights on/off. Might still keep one or two MJs in there and move the rest to my QT or just keep for extras.
I plan on building a 350-400g system in about 3 years. How do you maintain good flow in a tank of that size without running a million powerheads? Use higher rated ones or what?
 
acrylic51

acrylic51

Active Member
Originally Posted by MoneyMan
SEIO is not designed to be on a standard wavemaker or timer. That's why you need to get the SEIO controller. The controller throttles down the SEIO to 30% instead of turning it completly off.
The Tunze NanoStream and Stream comes in 2 versions: Fix and variable speed. Unless you are planning to purchase the Tunze controller, dont get the variable-speed version (NanoStream 6055, Stream 6000, 6100, 6200). Keep the on/off state of the (Nano)Stream to at least 30 minutes (30 on, 30 off, 30 on, 30 off, etc).
Another thing you can try is to mod your MJ900. It'll cost you about $25 each maxijet. The mod will turn your narrow-flow MJ into a 1500 g/h wide-flow monster. You can then put your moded MJ on a wavemaker or timer.
 
dogstar

dogstar

Active Member
I would think a Mag 1800 would be plenty, however your spraybar may be the cause, cant say for sure, but could be reduceing the flow considerably depending on how its constucted. A more simpler aproach IMO would T the return with a couple of standard adjustable spouts and direct them as needed.....
 
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