I have an Aquatop CF500 UV canister filter. Unfortunately, the impeller snapped in half tonight. I've ordered a replacement online as fast as I can, but it won't get here until Friday morning. Will my media survive that long? I cleaned the canister about 3 weeks ago, so it's relatively clean inside. Can I use the primer on the canister to occasionally move some water across the media and keep it alive without removing it? I would guess I'm looking at 36 hours without it running.