| Substrate Free Tank Husbandry (Bare bottomed) This forum is for the discussion of the care and husbandry of substrate free tanks. |
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06-03-2006, 07:27 AM
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#1
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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Finally found the BB guys YEA!!!! FLOW HELP!!!!!!!
after months of searching.. or i guess just totally giving up in other places the reef tank has come to make all things right again.. so my question is as follows... i am setting up a new tank a 292 its 72x36wide and 26tall. it is pennisula style with an external overflow on one end. flow? how to do flow? i have an iwaki 100 with 4 eductors i am thinking of running on the oposite end of the over flow on the top pointing back towards the overflow. i have a sequence 4200 i am thinking of going with a closed loop. i have an ocean motion 4 way. my thought was to run the sequence pump with 4 returns through the bottom of the tank. two and the overflow end pointing towards the other end. and two mid way down in the center pointing the same way . then use the 4 way to cycle two on the end then two in the middle to make for a way to make the detirus not get suck under the rock.. then i was thining that really seems like a waste of the 4 way and i could just sell it for 300 and use the closed loop some other way. right in front of the overflow i am thinking of putting a few sieos or something for now untilli can get a stream or two pointing down to give the whole tank a swirling pattern what would you do for flow? how would you set it up? thanks
jarrod
here is somewhat of a picture
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06-03-2006, 08:07 AM
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#2
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Duper Mod !
Join Date: Mar 2005
Location: Illinois
Posts: 13,974
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Welcome to TRT
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Kelli
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06-03-2006, 08:30 AM
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#3
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Shark
Join Date: Dec 2005
Location: Yuma, Arizona
Posts: 1,472
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Welcome to TRT!
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55gal... BB of course! 
Love the
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06-03-2006, 10:02 AM
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#4
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Coral Killer
Join Date: Jan 2006
Location: CT
Posts: 307
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I run the same dimensions as you except my tank is on 24" tall. 2 eductors run by a PCX-70 and a Tunze wavebox handle all my flow. Uncle Spanky only runs 2 on his 10 foot tank. You may be overdoing it a bit. Alot has to do with your aquascaping as well. Mine is super open. |
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06-03-2006, 10:38 AM
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#5
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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overdoing it.. come on whats that  lol.... well then i think the eductors will be good but what about the sequence pump? and the ocean motion is that a waste of money to run that.. i think i iwll just sell it and run the eductors and at the other end bottom have two returns shooting on the bottom of the tank.. that might work.. i love your tank it looks amazing..i love spankys tank he is one of the people i had to find again.. along with you, weatherman gregt all the wonderful people here at TRT i want a pretty open rock. i plan on useing dowls to hold up everything and drillt he rocks so i can do much more open rock work with less rock and more stablility.. i think the ocean motion is just and extra 300 bucks that my tank really wont benifit from... here is an updated pic of the plan...
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06-03-2006, 03:05 PM
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#6
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Just some guy, you know?
Join Date: Sep 2005
Location: West of Dimples
Posts: 18,185
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I wouldn't use dowels because they will rot. What I used were cut up pieces of a plastic coat hanger, but they also sell acrylic rod as well.
Good idea on keeping the rock off the glass, and open, that will make your life much easer.
Other than that I don't have much to say because I have never even thought of setting up a tank this size. Best of luck and
Welcome to TRT!
Whiskey
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Mr. Jive/Dr. Heckyll
And you run and you run to catch up with the sun, but its sinking
racing around to come up behind you again
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06-03-2006, 04:10 PM
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#7
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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i planed on plastic coat hangers
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06-04-2006, 06:16 PM
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#8
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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anyone else have any ideas on the flow.... a closed loop shotting all across the bottom and the penductors across the top.. with the one sequence 4200 be enough to keep the bottom clean.. should i add antyhing else? or does the second picture look good.. anyone have any thoughts?
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06-04-2006, 06:21 PM
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#9
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Coral Killer
Join Date: Jan 2006
Location: CT
Posts: 307
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Run 2 eductors on the bottom and 2 on the top. If you want to get fancy run 2 PC-70's and you can set them up to alternate. The easiest way would be to run them off a PCX-150. You are way underestimating these things! They really rock, and if you need more flow you can just drive them harder.
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06-04-2006, 06:27 PM
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#10
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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i have had two before.. i have a iwaki 100 in the basement driving them... think it would be worth selling the sequence 4200 for a pc70 and have them across the bottom and the other two on the top? do i want to go for a nice swirling pattern in the tank or curent blasting at it self? this is three sided viewable too.. i think i should sell the OM 4 way..
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06-04-2006, 07:22 PM
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#11
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Coral Killer
Join Date: Jan 2006
Location: CT
Posts: 307
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I have swirling patterned and it works well. The only issues is the tank swirls from left to right and the overflow is on the back. Ideally the particles should swirl right into your overflow, know what I mean?
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06-04-2006, 07:23 PM
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#12
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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right so on the left... is the overflow... and the top right would be eductors pointing at the eductors, and the CL pointing from left to right across the bottom.. that sounds like my plan for now.. i think... i think... i think....
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06-07-2006, 11:21 AM
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#13
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Little Fishy
Join Date: Mar 2006
Location: oxford, mi
Posts: 101
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just wondering if the sequence CL pump will push the water all the way across the bottom.. only one way to find out i guess...
__________________
Current tank
84x36x24 315 gallon reef pennisula style connected to
12x4x30" deep shark/ray lagoon
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06-09-2006, 01:22 PM
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#14
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NFMAS
Join Date: Apr 2006
Location: Saint Augustine
Posts: 2,447
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You will not have rotting issues with wood dowels underwater if you use oak dowels. In some cases wood is perserved over hundreds of years underwater. The dowels also expand creating a tight bond. I have pieces that I cannot seperate.
In the planted aquarium hobby, wood such as cypress is used for displays. People are still removing acient old growth logs from the Columbia river that sank over 100 years ago from the logging industry. These logs have been underwater since the turn of the century. Also Indian, and pre colonial artifacts from as far as 200 years ago have been preserved in springs and bogs. These wood fragments are the only flora evidence we have from that period in history. Wood exposed to air generally rots faster that wood underwater
http://www.forestcouncil.org/tims_picks/view.php?id=1116
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06-09-2006, 07:27 PM
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#15
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The Border Collie Mod
Join Date: Feb 2001
Location: right now? in my chair
Posts: 13,218
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I don't think you need anything on the bottom at all. If you get enough surface water moving, it's got to hit the far side, turn down, and come back across the bottom. That's the movement you want.
Concentrate more on how you arrange your rocks with that in mind so you don't block the flow.
Use the eductors on the end with the overflow. Pushing surface water away, and also sucking the water up to the overflow.
Eductors on the left, next to the overflow:
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