| Arowana tankmates?
As a much younger man I inherited a mature (~2 1/2') silver arowana and a pair of ~8-10" oscars in a 100 gal tank. I cared for them for about a year until I went away to college and then turned the whole set up to family friends. The time I had them, they got along just fine and appeared to have plenty of room to move and stay out of each others way...but I was young and didn't have the luxury of an internet by which to research suitable tankmates. Fast forward 20 years:
I've bought a 100 gal tank (4' long, 2' deep) and have option to buy 150 gal in about a year. I am enamored with the arowana and have been researching tankmates. I'm getting conflicting info on suitable tankmates, and haven't found any recommended tankmates with color to off-set a silver aro.
Please, I need some ideas on tankmates!
Other considerations: I'll probably end up buying a small aro, so growth rates may be a factor. I'm still cycling the tank, and I'm giving living plants a go...but I usually can't grow mold on yogurt, so may end up with artificial plants. | 
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