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Transfering to a new tank

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stephan View Drop Down
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    Posted: December 18 2007 at 4:22pm

So I'm downsizing from a 100 gallon to a 65 gallon aquarium soon. I may have the option of having both set up simultaneously for a short time if I decide to put the new one in a different location in the room, but I'm not sure yet.

Either way, how would you all make the switch? Here's one plan I've thought of:
 
(1) Put fish in the sump with a powerhead (they'll have plenty of room)
(2) Fill a tupperware thing with some of the water from the tank and put all the rocks and coral in there with a powerhead.
(3) Put new rinsed sand in the new tank and fill it with the rest of the water from the old tank, give it a little starter from the old sandbed.
(4)Drag my sump with DSB from the old tank and put it under the new one and reconnect all the plumbing (hopefully won't disturb the sand bed too much).
(5) Put the rocks and corals and fish in the new tank with the old water, top off with new water and start up the circulation.
 
I figure this way the only thing that is "new" as far as fish and coral is concerned is the shallow sand bed which would have to cycle.
 
Any other ideas or comments?
Stephan Lovstedt
Camarillo, CA
65 Gallon Glass
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CrimsRayne View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrimsRayne Quote  Post ReplyReply Direct Link To This Post Posted: December 18 2007 at 4:51pm
sounds good to me.  If it were me though I'd just reuse the sand.  (unless it's really old)  I'd just rinse the sand a little and let the new tank cycle for a day or two just to make sure you didn't kick up anything.  A tip I got from Eric (I think) when you take the water out of the old tank and get down to a couple inches, kick up the sand.  Mix it up till the water is really gross, drain the gross water and add some of the old water, rinse again with that and see how dirty it is.  This way you don't lose all the good bacteria, just the stuff that has settled and could hold all the gross stuff you want to get out anyway.  You may want to put the fish in a tupperware tub too so you can cycle with the sump.  Of course use all the water you can from the 100gal.  Test the levels and add the fish, corals, etc.  I used this method in the reverse way.  I went from a 29 to a 75 to a 130 over several months.  All with the same sand and water.  No loses here.  Good luck with the transfer.
BTW, Are you changing to a different lighting system or type?  If so it may take some time for everything to adjust to it.  btw if the new lighting is more powerful you will want to start the corals at the bottom of the tank and work them up to where they will be, this will help keep them from bleaching.  (btw learned from experience, accidently bleached a couple frags.  oops)
"What we know from this hobby is too hard to share with the people who just want to look and not get wet." -Rioreefer

"The Puffer Girl"

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gahlenfr Quote  Post ReplyReply Direct Link To This Post Posted: December 18 2007 at 5:59pm
I have swapped tanks a number of times now and it is not a big deal especially down sizing.  I would put the current items in tubs with powerheads and I even do the heater depending on the length of time to swap.  Next I put the old sand in and then some tank water.  The difference for me is that I use a canister filter to clean the water and then add the rest and filter some more.  I put the occupants in the new tank and leave the filter running for a day or so and that is it.  I have never lost an inhabitant this way (coral or livestock).  With this method you do not need to worry about waiting.  You are going to get some diatoms but they will go away and the cleanup crew gets a bonus!  Good luck.
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