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I have the rings, but I haven't added them yet. I was too busy setting up my new 180gal! But I plan to do it soon.Did you ever add the rings? Thats how i had my first planter sump set up, roots dug right into the rings. Think im gonna do the same for my new planter sump project.
When I do my water changes twice a week the roots are left hanging out the water with no water in the pipe and they do dry out a little. I haven't seen any negative effects from this, so it appears drying out a little isn't harmful.mattybecks
I saw your design quite a while back, and I wondered if it would work OK with just an airlift?
Someone once told me that in hydroponics the roots should be allowed to dry out a bit between waterings.
I don't do this, but I'm thinking more air will help the roots.
For a while I ran two systems with the Pothos in a remote planter, and just circulated the water to it with an airlift.
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I had to keep the drain free of roots and leaves though, or the planter could fill 100% and overflow.
If it filled up all the way, it put too much weight on the lids and tank brace, so I had to put some sticks under the planter for support.
Those systems are both gone now, but they worked OK and nitrates were reduced.