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I was wondering would it be possible to safely use an acrylic tube for a cooltube without it melting :?:I read on a website that acrylic can be used continuously at 70*c which is 158*F. would this be safe?

Hello to All The Agent here and since search engine isn't working i had to post. I was just wondering whats the best medium to start a seedling in to be transfered to a dwc system? Such as peat pucks vs. rockwool vs. ? and so on. I have a couple bagseed thats cracked and roots are peaking out...