Reverse undergravel filter and sand...?

[sammydee]

Hi.

I could have kicked myself. I just got all my sand put down and all the plants planted when I had a brainwave. Not sure if it would work or not, but I just wanted to bounce it off some other people.

Would it be beneficial for the plants/keep the sand from becoming anaerobic/act as a filter if I attached a powerhead to a length of hose and spirralled it around the bottom of the tank under the sand. I would plug up one end of the hose with silicone or similar, and then puncture lots of tiny holes in it with a pin or little drill. Would that then work as a RUGF?

 

[beblondie]

Problem would be the sand being in suspension in the water colum getting into the filter-Anne

 

[jimw13uk]

Thats like a UGJ - but in a proper UGJ you have rigid pipe under your substrate with a number of outlets that are above the level of the substrate. This causes a water flow and stops the poop from collecting on the substrate. By using a prefilter on the power head all the poop gets collected and as such you have a nice clean tank.

 

[simonbrown403]

sounds good, but plants hate to much o2 at there roots.

 

[sammydee]

Well not if you have your CO2 injector at the intake of the pump. Hmm...

 

[Lateral Line]

Adding CO2 to the water will not reduce the Oxygen content. I don't think it will work.

 

[Yenko]

You might get some reduction in oxygen content if the water for the RUGF comes straight from your filter, but I doubt it will be enough.