I actually did that from my 29 gallon I threw in like a good 10 lbs of LrAwesome welcome to the hobby, even tho Im with freshwater now....but you should check out maximum reef aquatics in Yonkers New york. Defiantly worth the trip lots of fish as well as corals at a very reasonable prices.
Like mentioned your tank may not be fully cycled unless you thru in media from the other established tank..
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