I'm not sure about "Flex Seal" as far as being animal safe. But there are a few manufacturers of rubberized pond seal/liner which are supposed to be no VOC. A number of members on monsterfishkeepers.com have created custom tanks with this product and have had no problems.
You could also...
You might want to watch out with regular wood stain. I don't know of any which are actually "water proof", most advertise "water repellant".
If you want to be able to see the wood grain you can use polyurethane to seal it. I believe it can also be applied over stain in case there's a...
As long as you can create a good thermal gradient feel free to use the tank. But I'd only recommend it if you're going to put live plants in. Mist a few times daily for short lengths of time, you don't want to saturate it.
I've always shied away from humidifiers due to potential of mold...
Two ideas come to mind for you:
1. You could make sliding screen doors out of window screen and the aluminum track with which the screen is pushed into with a pizza cutter type tool. There are a couple threads which display it, maybe search for diy screen cage. You could even google window...
Great looking vivarium! I will be building something similar very soon. Between the convection current and live plants you have plenty or air circulation.
Did you line the inside on the wood with glass to waterproof it? I plan on using a paintable pond liner and then covering that with...
I'm a little unsure of how you're intending to use it. Are you trying to coat the metal of the birdcage to protect from oxidation?
I'm not positive about Flex Seal, but I do know that there are several manufacturers of paintable and possibly sprayable pond liner which claim to be animal...
I don't know the answer to that. Maybe only the moth is poisonous and not the caterpillar? I do know that most insects are very specialized feeders and can only eat from certain groups of plants. But I do not know if they develop poison directly because of what they eat, or if it is developed...
I am actually planning on building something similar. I haven't gotten an exact price on the glass doors (will be installing sliding glass doors), but I'm estimating total project cost to be well under $400.
I will be using marine epoxy to waterproof the inside. My design also includes a...