I have a 46 gallon, and I'm really itchin to convert it to brackish and buy an archer. Any chance a 46 gallon would be big enough for one archer? How fast do they grow? If they grow epicly slow like plecos, I'll probably upgrade to a 75 eventually. How long do you think a small (3" or so) archer could live in there before it needs to be moved to a bigger tank? Also, any way I could keep an indian mudskipper with him?