u/Alternative-Meal-136

After 40 years it's time to wind down a 70 gallon salt water tank. It's bed is 4 plus inches of sand and there is a 100lbs of rock in the tank. It's been years since it's held livestock but I have never stopped circulating and filtering the water.

I need to offer the tank to the local community.... Do you think the bio base is worth trying to find someone that wants the whole eco system or shut I drain it and give away the parts