so i've been in the process of upgrading to a larger tank. scraped the idea of the 150 gallon (sold it) and have finally decided on a 180 gallon tank, 40 gallon sump and 30 gallon refugium with DSB.
tank will be done being built and will be done this weekend.
at the moment, im seeding a bunch of my coral baserock in my 55 gallon
so i was thinking about transferring the live sand from my current 55 gallon into the refugium and filling the display tank with about 2 inches of new aragonite sand.
i've heard bad things about moving sand from one tank to another, any insight?