Cycling tank water change?

jaydm93teg

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Hey guys,
I just recently set up my 140 gallon, I had to fill it with regular tap water as I dont have and RO unit yet and I was not about to try and transfer 100+ gallons of water from and LFS. I did use a water conditioner as well as a bacteria started. Most of the rock came from established tanks the sand was a mix of both live and dry.

I am using 2 fluval canister filters that I took the media out of and replaced with live rock rubble and regular filter pads.

My question is I know I have to be really good about cleaning the fluvals as often as once a week, How long should I wait before I do a water change? I dont want to mess up my tank cycle so I wasnt sure how soon to do the first water change.

Thanks
 
Most people do a ~30% change after the cycle is complete. No reason to do it earlier IMO.
 
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