Foam rock wall dyi help?

reef_dart21

Member
Of course i have been reading and i had wanted to make a foam rock wall with live rock and live sand with seashell and tunnells w/and under ground foam tunnel system.
for the most part i know how to this is more less a diary of my work
but i wanted to first know how long foam takes to dry and wether i can put it straight in or let it cure??
thanks eric
ill posts pics up upon request
 
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