[Percularis]

Is Great Stuff safe if it's exposed to water? Will it pollute the water and make it unsafe for the frogs or tadpoles?

Also, how can I patch areas of great stuff that weren't covered in silicone? There are a couple of tiny (less than 1cm) patches where the great stuff shows. Is there another way than silicone?

 

[Mitch]

When it's fully cured it is fine... completely safe.

 

[Percularis]

When it's fully cured it is fine... completely safe.

Thanks for the fast reply. Is there a way to make the great stuff appear rock-color or brown other than silicone and peat moss? I tested water in it and some of the peat came off.