This is going to be a nightmare and I haven't been ambitious enough to do so. We have approx 40lbs of Playsand in our tank that was topped with 20lbs of Live Sand. I am finally coming to the conclusion that the playsand is harmful to the water quality and clarity.
Is there anyway to teardown the tank and remove the sand without ruining the 7+ months that the tank has matured? I know I'll lose all the pods
and beneficial stuff that is in the sandbed.
This is what I would plan to do.
Drain half the water (25 gallons) into a rubbermaid container. Setup a extra powerhead and heater to maintain the temperature. Add all of the live rock, crabs, snails, shrimp, goby, clownfish.
Drain rest of tank into the washbin until there is just sand and some water left. Proceed with the pain in the neck job of scooping all of the sand out and disposing it. Rinse out as much as possible.
Add 40lbs of new Live Sand to the tank. Add the Live Rock back to the tank. Add approx 20 gallons of pre-mixed RO
water to the tank. Wait for things to settle. Then add the fish / inverts back into the tank and then the rest of the water from the rubbermaid.
Does this sound ridiculous? I am having so many algae / tank clarity problems that I'm willing to go through all this. But don't want the fish and inverts to die / get sick in the process.