Ok, so the jewel is about maxed out.
I don't know much about jags, i am assuming there are several varieties?
I have really just done Oscars to this point, as far as large fish go. Did have an arowana but haven't tried them again. I am looking at raising some others and get more knowledge. Was thinking Jd or EBJD, maybe a dovii?
Tank footprint is just as, maybe more important than volume per fish. I wouldnt put 4 Oscars in anything less than 8ft and 300gals. Filtration would have to be massive and water changes equally as big. Quality Oscar care can easily produce 15in fish. They dont get enough room and clean water, they wont reach their potential.I was also, thinking each oscar needed about 55-60gallons a piece? Is that still a pretty good amount of space?
Future planning, I would like 4 large oscars in the same tank for a variety. Doing that I was thinking of a 240 gallon tank.