I have a leak! Reusing old sand?
So my 55 is leaking, so over the weekend I'm gonna reseal it with silicone. Im going to try and reuse as much substrate thats in the tank(which is pfs and eco complete). The question is if I don't have enough sand can i use some that has been in a bag outside for a while and rinse it off to get rid of possible bugs or other gunk. Or just buy some more. Im trying not to spend a fortune as im only in highschool and dont make money. Please help! I don't want to just tear the tank down and sell it.