Flourite Q, moving 29g -> 80g
Question 1: My 29g has been set up for about 5 years. I am moving to a 80g. Can I use the old flourite or is it trash now?
Question 2: In the next 1-2 years I am going to have to move the tank temporarily, take it down for a few days, (home repair), can I just leave the substrate alone in the tank and drain/move it? Or do I need to take it all out? Will it need to be replaced?