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Old 01-08-2013, 05:51 PM   #1
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scared to upgrade my powerheads

i have a single 750 in a 20 long that im sick of, mainly because i have it in a position where it can blow against the surface, and when i lose an inch of water the powerhead starts to create bubbles because its not completely surfaced


my concern is that how will it effect my corals? i placed them all in strategic positions based on my powerhead, i dont exactly want to move them all around now that they seem thriving

if i do go ahead and get 2 powerheads, what kind and where do i position them? i would use my old powerhead to mix saltwater. The smaller the better, i hate bulky looking tanks.
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Old 01-08-2013, 05:55 PM   #2
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In my 29 gallon I have 2 550's and have been very happy with that setup.
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Old 01-08-2013, 05:58 PM   #3
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I have 1 MP10 in my bio cube 29. I love it and in my opinion was worth it.
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Old 01-08-2013, 06:08 PM   #4
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i wouldnt mind sticking to 1, but i am jealous of other peoples midas blennies who seem to swim everywhere and perch on rocks, mine does neither

im hoping a switch to the 2 powerheads with reduced flow would be better, but who knows ! i didnt do much research on powerheads except that 750 will be enough
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Old 01-08-2013, 06:22 PM   #5
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hydor koralia evolutions. they are compact and give a strong gentle flow.
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my 125g Sw...Round 2!http://www.aquariumadvice.com/forums...220171-33.html
ever see someone cut a 125g in half??
http://www.aquariumadvice.com/forums...-286438-4.html
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Old 01-08-2013, 07:30 PM   #6
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what is considered MODERATE flow? any videos
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Old 01-09-2013, 02:04 PM   #7
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depends on what type of coral you have. if your corals are growing and look healthy now, id say stick with that same flowrate, or atleast close
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my 125g Sw...Round 2!http://www.aquariumadvice.com/forums...220171-33.html
ever see someone cut a 125g in half??
http://www.aquariumadvice.com/forums...-286438-4.html
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Old 01-09-2013, 03:54 PM   #8
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You should move 30-50% of your water volume. At least that's what I hear. I'm moving 2800 gph in my 90 gallon tank so I'm at the lower end. Theoretically my tank should be good up to 4500 gph.
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Old 01-14-2013, 12:44 PM   #9
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so there is a sale going on petmountain

should i get 425x2 (more flow than i have but more controlled)
or 1x425 and 1x240, keep in mind i have a 750 right now and i feel like that is too much in some points of the tank, i can see some corals not liking it, but some corals do

im leaning on 1x425 and 1x240, but im not sure if that will be too much less
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Old 01-14-2013, 01:51 PM   #10
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You can't have too much. Imagine the ocean...there are tides and waves moving the water around all over the place and the corals love it. They will in an aquarium too.
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