Re: Re: Filmy ferns and wardian cases

Wim, Bob et al., 

At this point I'm looking for a solution using the KISS principle and I reckon that 10-15 cm of splash using an airstone ought to be enough for the moment. I've got all the hardware needed in my box of spares already. An aquarium circulation pump connected to some kind of sprinkler system is an idea I've got for the project further down the line. In both cases I'm hoping that I can fix it so that the runoff will collect in a pond at the bottom of the container to create a kind of closed circuit system.

I'd found a reference to the computer fan for terrariums on the 'net, but I don't think the fan motor would last long in a humid environment. Instead I've got a vague idea of have an external motor driving a fan inside the container, perhaps via a hole drilled in the side or top of the container. It shouldn't be too difficult to solve.

Our rainwater is pretty good but I do use quite a lot of deionised water for mixing film developers already so I'm probably going to get a small reverse osmosis unit for that, for my aquariums and for my ferns when the rain barrel is dry or frozen solid. 

John.

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