Also, while I've got you guys here I'm nervous about this water change. Hank is due for one (I read one forum and now I'm absolutely terrified of dropsy) but now I can't get it out of my head that he got so sick because I was doing them wrong. Is it okay to dechlorinate after the water has been added? Additionally, my current water change tool is a maybe 2 gallon trash can. Will it put him back into shock to do the 3-5 trips it takes, both for removal and addition? I can siphon water out with my new gravel vac if that would help