under substrate jets - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 12-14-2014, 05:22 PM Thread Starter
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under substrate jets

Im going to be haven a sand substrate and i remember seeing once that someone had the idea of buring a pvc pipe with little holes drilled into the pipe and having a little pump pushing water into the sand, has anyone tried this before it seems like a good idea but i can see it pushing the sand everywhere

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post #2 of 12 (permalink) Old 12-14-2014, 09:21 PM
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once the sand settles, the water flow will push the sand away from the jets leaving pits, lol
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post #3 of 12 (permalink) Old 12-14-2014, 09:34 PM
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What for? I'm confused haha!
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post #4 of 12 (permalink) Old 12-14-2014, 10:05 PM
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That's sounds like it would become a nightmare causing all kinds of issues
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post #5 of 12 (permalink) Old 12-14-2014, 10:42 PM Thread Starter
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its so that it helps push neutriants back into bottom of substrate from liquid fertilizer and turn the sand bed into a type of bio filter eg reverse UGF not using high flow only low and using pool filter sand bed will help with the flow

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post #6 of 12 (permalink) Old 12-14-2014, 11:33 PM
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That is called a reverse flow under gravel filter. It works fine, as long as you have enough gravel/sand on top of the pipes. I used it in a couple of tanks and had no problems with it. But I also used a canister filter ahead of the RFUG filter. The combination gave me extremely clean water.

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post #7 of 12 (permalink) Old 12-15-2014, 06:59 AM Thread Starter
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well i have a fluval 405 was thinking of using that or have a separate pump but have a mechanical filter before the sand bed like the all pond solutions canister filter add on

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post #8 of 12 (permalink) Old 12-15-2014, 01:22 PM
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Wow that will be a lot of work. Why not just use a regular under gravel filter and hook your pump to the tube that normally the air is hook up to. Then put 2" of gravel top by sand. My only problem is your going to have dead spots that don't get water to them but for the most part it will work.
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post #9 of 12 (permalink) Old 12-15-2014, 01:25 PM
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I have seen the concept in fish only tanks.
Not sure how well it would work in a planted tank.
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post #10 of 12 (permalink) Old 12-16-2014, 12:10 AM
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it really does sound like a good idea, almost like a underground spring, i have one at my parents, and the sediment doesnt move, and all is settled, but once something disturbs it i.e. my foot, murky for days.

i could see it work, but you need to position plants away from jets, otherwise it may cause turbulence and cloud up the water.
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post #11 of 12 (permalink) Old 12-17-2014, 08:08 PM
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Someone did an article on this back in the day. https://www.plantedtank.net/articles/...n-Manifold/12/. I entertained it for a second but as I thought it would help distribute co2 and nutrients quite well. I was unsure how well it would work so I squashed the concept. For a substrate-less tank sure why not if you wanted to go that extra mile. My concern would be matching the pump to the flow needed in order to not blow substrate all over the place.

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post #12 of 12 (permalink) Old 12-18-2014, 12:53 PM
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Quote:
Originally Posted by Diana View Post
I have seen the concept in fish only tanks.
Not sure how well it would work in a planted tank.
I have seen this work for plant tank. I know guy that had some of the best tanks and plants with this system. The great thing about is it keep the plant roots warm and gets the fertilizer to the plant roots. If it done right you won't even know it in the tank.

Last edited by Clear Water; 12-18-2014 at 01:53 PM. Reason: 1
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