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Watercycle model for education use

Posted by dbzeiger (My Page) on
Thu, Oct 4, 07 at 11:17

I'm building a 29 gallon terrarium to be used as a model of the water cycle. It has a heated pool area and a sloped lid, cooled to encourage condensation and allow rain to fall over the land side. Everything works great, except the front glass is getting too foggy. Has anyone ever tried any of the anti-fog coatings sold for scuba masks? Does anyone know if they'd be safe to use around plants. At the moment I'm not planning on adding animals so plant toxicity is my biggest concern. The company that makes them claims they're non-toxic and biodegradable, but so far they won't tell me how quickly they break down. Any advice would be appreciated.

Follow-Up Postings:

RE: Watercycle model for education use


RE: Watercycle model for education use

You could test toxicity on a small, unneeded/unwanted plant in a different container. If you don't have any of those, you could probably sprout a few beans or peas.

RE: Watercycle model for education use

Hello dbzeiger. I was just wondering if you ended up using the anti-fog product on your watercycle model and how it went? I had the same idea and am about to apply to an apothecary jar with ferns and mosses - it would be great to hear your experience before I take the plunge! I also wondered if the anti-fog would interrupt the self-watering cycle??

RE: Watercycle model for education use

Rain x

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