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1) I have not tested. What do I need to get? I have heard of Ph testers, but is this what you are refering to?
2) Good point about the fiberglass. It has a coating all over it. I didn't realize it was fiberglass until a tiny corner of it was chipped and I could see the resin behind.
3) The bowl does sit in a fairly sunny spot all day. I moved it nearer to the house so it gets shade half the day. It is a balance because most of the plants need a lot of sun. That is why I think once I get more plant coverage the water temp should stableize.
4) I think the surface is fairly large. I know posts come in different shapes and sizes, but it is pretty generic shape, just on a larger scale.
5) I would say most of it is water. I have some pots turned upside down to create different elevations to stack the plants on. Plants cover about 20% of the surface.
Thanks for the reply. Ill keep at it and eventually get a good system.
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