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  1. #1
    Senior Member
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    tank back up and running,when can I put fish back in?

    my 120 gallon is upand running,I used half the old water and the rest ro water.

    live rock has been in for 4 hours except for some in the 30 gallon where my fish are in.
    would it be ok to put the fish back or should I wait a day or 2?

  2. #2
    Moderator mike536's Avatar
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    Just to be safe i'd do some test. Not really necessary but better to be safe than sorry. I'd put them back in if they were mine.
    Cheers,
    Mike Philpott

  3. #3
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    will give it till saturday evening,that gives a dozen cramped fish 3 days in a 30 gallon aquarium.

  4. #4
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    It's more stressful on the fish to be cramped then moved. Good luck
    Jason

  5. #5
    Former Moderator a4twenty's Avatar
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    if your upgrading ( sounds like it ) i would wait till the parameters in the new tank stabilize then begin aclimating the fish. the LR you moved from the old tank should prevent a spike. that is assuming it was your filtration from your old tank and you didn't have another filter not moved to the new tank ( like a HOB or canister )

    it sound like all you've done is increase the volume of water and not the bioload so you should be ok. when i moved ( and upgraded ) mine across town i put new sand in the tank then the water and rock. when temp stabilized the fish etc went back in. then i gradually started pumping new SW up from the basement sump ( a couple of gallons at a time ) even though i removed the wet / dry ( bio balls ) during the move i still had no spike.
    `

    120S RR tank with 60G basement sump / fuge

    Return Pump: Little Giant 4-MDQX SC
    Water Movement: MP40W, Seio 1500, (2) Hydor K4's
    Lighting: 400W SE MH with 10K Venture
    Skimmer: Euro-Reef RS250 with gate valve
    Other: RODI, RDSB, PO4/AC reactor


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  6. #6
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    actually I moved the 120 gallon from my apt to a house. I took the 1.5 inches of old sugar sand and half the old water to the new house and added an inch of coarser sand and the rest ro water.I did not rinse the old sand or clean the back glass on the tank. the water is pretty much clear today.

  7. #7
    Senior Member DARK's Avatar
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    Did you premix the ro water with salt before putting it in the tank? If not you just killed everything in the sandbed and you will have some big problems soon.

  8. #8
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    I scooped the sand out into 2 pails and left enough tank water to cover it.

    had it back in the tank within 4 hours and then added back the 60 gallons of old water and new ro water that was mixing with salt and a powerhead since day before. hope this is ok.

  9. #9
    Senior Member Ricepicker's Avatar
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    should be fine, bacteria and critters are surprisingly tolerant to changes in salinity IME, but some may have different experience

  10. #10
    Former Moderator a4twenty's Avatar
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    so ..... are they back in?????
    `

    120S RR tank with 60G basement sump / fuge

    Return Pump: Little Giant 4-MDQX SC
    Water Movement: MP40W, Seio 1500, (2) Hydor K4's
    Lighting: 400W SE MH with 10K Venture
    Skimmer: Euro-Reef RS250 with gate valve
    Other: RODI, RDSB, PO4/AC reactor


    My Gallery

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