Depending on what you want to kill. If the LR only have Aiptasia and nothing
else, then you can use that method of using only RO water w/o those mix.
BUT, if there is a shrimp or hitchhiker that you want to keep, then you will
have to target the critter or specific thing you want to kill. Putting the
whole LR in RO (fresh water w/o mix) will eventually make your LR = DR
(Dead Rock). LR = living critter that occupy on, around and in your the
cavest / spore of the rock.

CapFusion,...


"Ken" wrote in message
. net...
The two of them were on a very small piece of live rock I was cycling in a
tub in my garage. I removed the rock and placed it in a small amoumt of RO
water (no salt, cold). How long should I let the rock sit in there until
aiptasia is dead?

Ken