Super glue

[Nano]

+1 the gel

[gregzz4]

Ditto

[Nano]

Btw I just buy the 4ml tubes of it at Walmart for like $3.50-ish

[msjboy]

Dollarama gel works...or dollAr giants brand as well
Msjboy

[DCDN]

I just used this for the first time and really liked the ability to control it coming out.

[Coasting]

So these non reef specific glues are safe? they will not leech anything yucky into the water? Do you wait until it dries before putting it into the tank?

[Nano]

Nope its fine everyone uses it it dries underwater too just hold it in place for a minute and your good no worries haha I use it to glue all my frags into place to attach, never had any problems with it nor can I recall anyone complaining of problems with it