When making frags, I will make sure the plug is dry. Put glue on the plug and then grab your slimer frag.
I like to lay acro frags on their side so they grow out from the base. Otherwise, the frag will grow straight up and be top heavy. Laying on its side gives it a better chance to grow a stronger base.
It'll be tough to do, but dry the slimer frag with a paper towel where you're gluing it to the frag.
Let the frag sit out if the tank until the glue starts to harden. I will sometimes drop tank water on top or let the frag cure in a container of tank water so your pumps don't blow it off the plug.
Good luck!
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