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Author Topic: Help me build a closed system  (Read 4817 times)
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scoopnet
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« Reply #25 on: April 01, 2012, 08:18:04 AM »

MD Blue is correct about the exposed tank and the water temp.  It would be to your benefit to shade the tank with a canopy of some sort.  I bury my filters and sump about 3/4 into the ground.  This keeps the water temp. about 10 degrees cooler that the air temp.  The ability of water over 80 degrees to hold oxygen is greatly reduce which results in a higher mortality rate.  Extra aerator heads help with the oxygen during high temps.
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Ron
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« Reply #26 on: April 01, 2012, 08:33:30 AM »

The sun isn't going to be a problem.    Too many trees and a fence on one side, a house on the other, it doesn't get a lot of sustained direct sunlight.   
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« Reply #27 on: April 01, 2012, 09:40:23 AM »

Ronster, I would suggest looking at "Bio-balls".

pretty expensive vs. free oyster shell shell


I would use cycle( found in pet stores) to establish start a good bacteria colony for breakdown of nitrates and ammonia....    I can do about 10-15 in a 40 gallon rubbermaid tub with 2 airstones a foam filter and an aquarium pump..I think would def be easier with a 4x8 float more so then a " deep" container as long as temp dont get to high but I dont have room for a 4x8 float in my basement...lol
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« Reply #28 on: April 01, 2012, 11:45:07 AM »

Got a picture of the system Jeff?
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« Reply #29 on: April 01, 2012, 11:48:49 AM »

pretty expensive vs. free oyster shell shell

That depends on how well they work. There's a reason the National Aquarium uses them vs. Oyster shells.

 and by free, would that mean someone will deliver a trashcan full of them to your door at absolutely no cost or are you not considering your time and fuel to go get them?

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« Reply #30 on: April 01, 2012, 11:53:49 AM »

I have access to oyster shells.
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« Reply #31 on: April 01, 2012, 12:05:01 PM »

I have access to oyster shells.

I think clam shells work, also.
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« Reply #32 on: April 01, 2012, 05:10:48 PM »

Got access to them, too.
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« Reply #33 on: April 01, 2012, 05:31:37 PM »

Got access to them, too.

Yeah, I figured it might be easier to come across them around the coast in NJ or DE then oyster shells.
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« Reply #34 on: April 01, 2012, 05:45:49 PM »

There's a monstrous pile of oyster shells at the Rutgers University lab down by my bay lease.    Clam processing plant (Surfside Industries) is only a few miles up the road.   
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« Reply #35 on: April 01, 2012, 07:17:46 PM »

Got a picture of the system Jeff?

its torn down for the winter...i had some pics I posted under softshells last year. ...Ill have it up in running before to long...lol   
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« Reply #36 on: April 02, 2012, 02:46:19 AM »



Think surface area!
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« Reply #37 on: April 02, 2012, 08:45:53 AM »


Think surface area!
and amount of flow thru the medium.  It would have to be crushed shells to be better then bio-balls surface area. Then you would have trouble with clogging I would think.
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« Reply #38 on: April 03, 2012, 07:05:42 AM »

plenty of surface area lava rock from home depot just rinse the rocks well before using.I also put this in the ground about 20 inches for water temps

(http://images.imagelinky.com/1333450966.jpg)
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« Reply #39 on: April 03, 2012, 07:20:21 AM »

Thanks, that's a great photo.
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« Reply #40 on: April 03, 2012, 09:46:47 AM »

couple more
(http://images.imagelinky.com/1312495288.JPG)
(http://images.imagelinky.com/1333460866.jpg)
(http://images.imagelinky.com/1333460948.jpg)
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Ron
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« Reply #41 on: April 03, 2012, 10:44:55 AM »

Nice.    Thank you.
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Dreampixels
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« Reply #42 on: April 03, 2012, 10:46:13 AM »


I use Lava Rock for fresh water ponds, works great. I choose to bottom feed the water in.
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« Reply #43 on: April 09, 2012, 01:09:25 PM »

Cut a plastic 55 gallon drum in half. fill it everyday with saltwater. And get a live bait airreator to keep water moving works great for me.
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« Reply #44 on: April 10, 2012, 11:23:51 PM »

i use these tubs from Lowe's, there $13.99 each,

http://www.lowes.com/pd_19252-1569-ST3608_0__?catalogId=10051&productId=1226689&UserSearch=plastc+mixing+tub&Ntt=plastc+mixing+tub&N=0&langId=-1&storeId=10151&rpp=24
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« Reply #45 on: April 10, 2012, 11:31:31 PM »

this is my system, just built it over the winter, click on the link to play the video.

http://s125.photobucket.com/albums/p71/powerstroker02/?action=view&current=0312121821.mp4
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« Reply #46 on: April 11, 2012, 04:41:49 PM »

this is my system, just built it over the winter, click on the link to play the video.

http://s125.photobucket.com/albums/p71/powerstroker02/?action=view&current=0312121821.mp4

It took you all winter to build that!!!

just kidden but how in the world do you see the crabs
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