As most of you know, we moved to a condo about 2 weeks ago Friday. Today was tank moving day. First we moved the empty 70 Gallon that my sons had resealed and refitted molding on. Next I emptied 2 saltwater tanks, my 27 flat back hex and my 47 flat back. Decided not to bring the contents of the 27 as this was just a feeder tank of local crabs with no heater and I was afraid how that culture would adjust to the tropical tank. All contents of the 47 gallon including the Eheim and the serpent star who has resided with over 10 different octopuses is now settled in a 1/2 full 70 gallon! I'm so excited as all I need to do is add water, invest in another filter source as I do not think my Eheim is large enough so I'll just add a second larger one. Install the Protein Skimmer. And someone recommended sand from home depot for Kids sandboxes as the substrate??? Anyone ever use this? He's a freshwater hobbiest, very skilled and uses it in all his cichlid tanks. I actually lucked out as the he is my nephew and he has the nack for keeping pristine healthy tanks so between him, my son Kevin and I we got it all moved and running tonight! It won't be long before I get my next octopus in my new home!!!