In the future (hopefully not too distant future) I want to get a 200 gallon with a Black Ghost Knifefish and an Arowana. Has anyone had experience with this? Are the species compatible? Is 200 gallons large enough?
200 is not enough for the longterm, even for the only aro if it's silver... And i think BGK will not comportable with asian and austrailian aros. So if u gonna get silver/black aro then it will work for some time if BGK is not so smaller than aro's mouth. But who knows? If ur aro needs some jet black dinner...?