Need some serious help here. I was on vacation for 10 days. I left my tank in the care of an experienced reefer, but that person got sick and just left the tank for the last 5 days of the 10 (he sent someone else over to feed). Somewhere in that time frame the tank had an algae bloom (serious bloom). I returned tonight to find a GREEN tank. When I say green, I mean pea soup! Given that its 2 in the morning, I can't really get any new water or salt to make new water. I plan to do a massive (50%) water change first thing in the morning. What else can/should I do to fix this? I kicked on the lights to see if I could see who was swimming around, but I can't see through the murk. This is horrible. I've never had anything like this happen before.