changing gravel to Vancouver island sand need advice

[lukep77]

Hey

I brought back with me about 100 lbs of Vancouver island sand. I was thinking about changing the gravel bed in my tank to a sand bed.
I have cleaned about half the sand and its just sitting in bins drying.
What Iam wondering about is, if I drain the tank and pull out all fish, and then place the sand in and refill let sit for a hour or 2 and then replace the fish and plants. Would every thing still be stable or can I expect to see a amonia spike and some cycleing going on again? Oh I forgot to mention the tank is a 90 galon with a fuval canister filter.

If any one has done this let me know, any and all advice is welcome.

L