What foam to use

[Jinsen]

And also a post from christyf5 back on 2006 lol



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[CHEAPREEF]

You'll want to find the pond foam that is non toxic. Like this.

https://www.aquariumillusions.com/aq...kaAiyVEALw_wcB

[Dendromad]

I use the foam in frog and freshwater habitats, and have seen it used well on freshwater fish tanks. I'm not sure how well it will hold up in saltwater?

I'd recommend the pond foam sealant over the regular great stuff as it is designed for use in water.