I just bought the tank brand new and got the skimmer that fits it. I figured new tank... New thread. It is in the tub getting a bath now then I am going to fill it today. So I could use some advice for that part... I have an established tank already running but it started as a reef in a jug project that made it up to a Frankenstein DIY hodge podge ugly biocube. That will be retired to the bone yard but how do I make the smoothest transition? I was just going to mix fresh saltwater then move the filter media then the rocks and call it good and enjoy... will that be too abrupt? Should I use some old water (its kinda gross)? I can't find my reef master test kit since I am just moving so only guessing my parameters are off. The old tank has been at the brother in laws for the last year with no more maintenance that toping off the water. The fish is gone and I can't tell if there are any coral under the blanket of cyno but there are still tons of stuff alive. Someone please advise in a hurry lol.