heat exchanger

I will be posting photos, updates, perhaps video updates on my most recent reef build. This is an Innovative Marine 200 EXT Peninsula set up as against a wall on one of the long sides. This puts the tank right up next to the wall while still allowing free access to all of the plumbing on the end...

I'm working on a DIY chiller system and seriously considering anodized aluminum heat exchangers. Asking if anyone can directly attribute exposure of aluminum, coated, uncoated or anodized to a tank crash or significant livestock death?