cycle/set-up question

[aj565]

my new set-up is a 210g display with another 210g sump and 55g return tank. so 475g total in tanks. the 210 sump is split 2/3 fuge 1/3 for the skimmer and the filter floss before it goes into the 55g to the return pump. wanted to get as much water as i could and have a long path to get the bubbles out just incase.
ok anyways about my question. there is about 120lbs of reef sand in the tank (not live sand, it was in a dry bag). i have my 75g and my 45g tanks still running untill i got this tank up and running.
my question is can i take everything out of the other tanks and put it right in the new tank (air time on the the live rock in the 75g would be less than 2 minunits max) i'm talking most of the water, the 80lbs of live sand and about 120lbs of live rock right into the 210 and not have to go through a cycle? i know i can do like a 80% water change and not have a tank recycle, wouldn't this be along the lines of just a water change but adding 400g insted of taking water out and putting new water in

i have a total of 8 fish and about 23 or so corals and i really don't want to lose any of the little guys.

 

[cmaxwell39]

Are you planning on adding anymore live rock than the 120# that are in the other tanks? If you are I would add the new live rock first and cycle the new tank with that. Once the tank has cycled you should be fine to move the rock and livestock out of the other tanks.

 

[aj565]

not right now i'm not. when i do it will be cured in another tank first. with all the work i'm doing with the new house i just don't have much extra cash with the way work is right now to buy anymore rock right now.

 

[aj565]

ok well i must have typed in the wrong words before when i did a search because this time i found these two threads. i think i might be ok, since i'll be useing most of the water from the 75 that will make me take some out of the new tank and i could save that and do water changes if things start to go bad.
https://forums.saltwaterfish.com/t/365259/cycle-set-up-question

 

[cmaxwell39]

If you are not using any more new live rock at this time you should be all right as long as you don't drastically increase your bioload. Make sure that you cure any new rock before adding it at a later date.

 

[aj565]

not increasing bioload at this time. and i'll have another tank set up to cure new rock, most the rock i buy is cured already and i bring it home in water.