Emergency!! Tank leaking
Help, there is a leak in my 20 gallon. I got the fish out, and I have a 29 Gallon empty tank. My HUGE question is, can I just fill up the tank with my old saltwater from the 20g and mix it with new water. I am going to use the same live sand and live rock. My nearest fish store went out of business, and the nearest one is like 50 miles away. I cannot wait a week for a nitrogen cycle, so if I put in some of my existing water, do I still have to wait??
Thanks in advance!!