Re: moving fishes etc

[Neptune]

You need to take as much of the old water as possible!  I would take at least 50% if possible.  If you do not, your tank will cycle again.  Even with 50% of the old water, your tank my cycle again, but it should be much less than if you use all new water.  FWIW   Craig Hello all of you,   I will take over the equipment and contents of a reef aquarium (not the aquarium). Do I have to use all of part of (how much %) the water of the old aquarium or can i put the fishes,shrimps,corals, etc in new made fresh sea water in the new aquarium?   Peter (from Holland)