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Discussion Starter · #1 ·
I started the DSM for HC in my 17gal tank. It's been the 2nd day and so far so good.

I am still a bit confused on how wet the soil needs to be.. I see photo's of other DSM projects with swamp like soil and some that seems nearly bone dry. I only sprayed the soil until it became somewhat moist and now I feel it may be too dry.

How moist should the soil be?
 

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Put water in the tank until it's just under the substrate. Mist the plants daily after the dry period, but do not soak them. That should be good.

I've had success with DSM in my journal down there using this technique. I think most that do DSM make things too wet.
 

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Discussion Starter · #4 ·
What to do about back slopes? I don't think I can get the water nearly half way without over flooding the front of the tank cause the slopes are about 5 inches in the back.
 

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The cac rate is high in aquasoil it will stay all wet. If you were to take a dry piece and touch it to a wet piece it would become wet almost instantly. I would not worry about the slopes. I'm doing the same thing right now except I have zero water level under the soil because of the high exchange rate. I can keep 100% humidity with aquasoil indefinitely.

I'm kinda openly challenging everyone's knowledge on dsm. But the way I see it there is zero need for excess water in a greenhouse. So choose for yourself.

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