Crazydaver

grow that lettuce bro ! :facepunch:

You want to get rid of the water every 9 to 10 days or so to prevent the nitrates from basically rotting and causing problems. changing the water every week is considered too frequent 10 days should be okay, but you need to make sure you dont need to do it sooner. Just take the "used" water and either throw it away or use it on your garden plants - they love that! hope this helps ! :rocket:

looks good bro. i also am growing gorilla glue by fastbuds. will be watching yours :wink: Good luck for your grow :+1: