Hi all,

I need to bond a few large stone together so need advice on what kind of adhesive to use. I tried silicon but it don't bond well and is low in strength. Considered cement but the curing time takes months.

Is super glue ok for aquarium?
Or those 2 tube epoxy that one needs to mix before using.

Thank you

You can use the 2 part epoxy putty sold in the glue section of HD. It comes packaged in two different color sticks. Sometimes it's all one stick with two components that react together when it's kneaded together. Good stuff. It's safe after it's cured.

There are "aquarium" versions of this sold as reef glue. It's possible they are the same thing, but if you want to be on the safe side that's an option.

Silicone will not bond rocks together. Ask me how I know.

I use superglue gel for glueing rock/frags etc in my SW tank. Works good.

Thanks for replies
I'll go get some epoxy and glue now

jb weld is good and will not leach in to the water column when dry