What silicone/paint would be safe for frogs?

[vixxy]

ok, so dumb question then....basically anytime a silicone says "mold/ mildew resistent" on it that would mean that is has the harmful fugisides, right?

[SludgeMunkey]

Not necessarily! As silicone does not actually support mold growth, it all is technically "resistant". Fungi will grow on the layer of bacterial matting that forms on the surface of the sealant though.

As a result, many products designed for kitchen and bath use have additives to kill bacteria, mold and mildew that attempt to grow on the filthy surface of the silicone over time.

As a general rule, if it says kitchen and bath anywhere on the label, I do not use it. The various brands and versions I use are normally rated for exterior window and door use. If you are really lucky, you can find versions specifically designed for pond and water garden use. (Buy these if you find them!)

On that note, never use versions rated for HVAC use. They always have antifungals and antibacterials. (Thank you Legionnaire's disease...)

[Monty]

Hmmm... Would it be better to make to background out of styrofoam with somekind of a coating to make it waterproof and pretty?

[SludgeMunkey]

In my opinion, yes.

[nmrobi]

What would be a good coating to waterproof a carved Styrofoam background? I have heard of a couple that people have used. Habecrete, Tile Grout, Silicone, One that looks particularly interesting was multiple layers of Drylok. Which of these are ok to use and which are no-no's?