I'm curious of a good way of doing water changes on a big tank. I have a 210 gallon aquarium. I currently siphon the water out and use 5 gallon buckets to refill. I change at least 100 gallons of water a week so carrying all those buckets turns into a lot of work. I've looked at the python water changers but don't see how that works since you can't treat the water till its in the tank. Maybe that's safe for the fish if you're putting water conditioner in as you're refilling. I don't know. I considered filling a trash can with water, treating it, and then pumping it in the aquarium. Thanks.