Originally Posted by cgthebeast
So would cycling my rock on a trash can with. A raw shrimp an powerhead be a good idea?
yeah, and throw in a hunk of rock from your existing tank to speed up the process.
unless the sand is nasty, there is no reason to toss it.
If you rinse it in water from the tank, you can get most of all the debris out of it, yet still keep the BB alive and that will also help shorten any possible spikes.
Folks seem to ignore the fact of how much bacteria and other beneficial critters are in the substrate and if you toss it all, than you should expect spikes and other issues.
Just transferring it without a good rinsing is also a mistake.