Yes it is totally possible but a tank that has cycled in a week is not balanced yet.
It is better to wait for a month or longer. Longer is aways better slow is good. Only bad things happen fast in this hobby.
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150 Gal system 3'x3' 400W M/H, Bekett skimmer, Dart return,1/4 HP Chiller
180 Gal Drop tank, LED lights, Bubble master 250 skimmer,Hammerhead on a closed loop, Speed wave return.
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