A alpha 200 on a 75 would not work well at all. The alpha has a much larger neck! look at the specs. Not just the gallon ratings. The neck is very large. I would run a 200 on a 180g display. Not a 100g tank. Your tank would have to hold so many more nutrients before it would even start to skim.
you all ask your questions now. Taking a break after this weekend for a while.
you all ask your questions now. Taking a break after this weekend for a while.