07-19-2010, 04:18 PM
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i dont have one i can suggest, and i do know they can be pricey. it might be a good idea to shop around on ebay, craigslist, a local reefing club, for a used one. i would also keep in mind any future upgrades ( id hate to see you drop $100-200 on a chiller that wont be strong enough for your next tank down the road, if there will be one )
i dont think a heat spike for one day would cause much if any bleaching unless the temps ran high but its very well possible. once you pass about 85+ your in the danger zone. long term id say even 80+ can be dangerous. ive had my tank at 80 though during summer months with no visible ill effects.