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Old 01-07-2007, 07:01 PM   #1
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How much current?

Is there such a thing as too much current? I have put a MaxiJet 1200 powerhead in my 55 gallon display and it just seems to be too much power (if that is possible). My fish seem to be fighting upstream all the time and the xenia is pushed horizontal and it is placed on the far side of the tank!

I took the thing out and now the fish move more freely. They are also using the whole tank instead of staying away from the side where the powerhead was.

That's a good sign, right?
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Old 01-07-2007, 08:35 PM   #2
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you still have a current though? your powerheads GPH (gallons per hour) should be 8-17 times the tanks capacity.

it did sound like your flow was kinda strong if the fish were being mauled around
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Old 01-07-2007, 10:17 PM   #3
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Yes it did sound like you had too much current in there. Just save that PH for when you go to your 125. (I hope)
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Old 01-07-2007, 11:16 PM   #4
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Would it help if some of the flow was directed toward the surface.
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Old 01-07-2007, 11:41 PM   #5
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Quote:
Originally Posted by packagerat
Would it help if some of the flow was directed toward the surface.
This is always good advice as surface aggitation provides superior aeration.
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Old 01-08-2007, 12:13 AM   #6
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Never can have too much power I always say. Get another and point them at each other.

Actually I have a couple 1140's I point down the back side of my 75g tank at each other. Helps keep behind the rocks cleared out as well promotes coraline growth on the back wall.
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Old 01-08-2007, 06:32 AM   #7
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I still have some current (that may be sufficient) because my return pump is over-sized and it is diverted with a "T". This makes the source water move in two directions along the back wall of the tank....

I have a huge return pump because I am preparing to run three tanks off the same sump. I have been waiting for parts to get the second tank going. That is why I have so much water running thru the display tank... Once the other tanks are running, I suppose I will need to supplement the current in each tank, right? Because the current created by the source of water entering the tank will be less.

..... 8 to 17 times... that's good infprmation!
Thanks!!
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Old 01-09-2007, 12:27 AM   #8
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Just make sure your SUMP can handle all the overflow if you say "Lose power" for a period of time. I'm going to assume you have overflows on the three tanks if you are doing this.
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Old 01-09-2007, 06:02 AM   #9
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The pump is on a battery back-up power supply but just in case - Nick showed me how to set it up so that each tank is designed to break the siphon if there is an extended outage. I (personally) would like to see a bigger vessel for the sump. But I might have to addd a room onto the house for that. (Ha ha ha) There is a picture in my gallery... Check it out. I did it all myself!
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