i bought a 12gal from a guy..in which he gave me a 15" aorowana and a small shark and a pleco..we moved the tank this past saturday.. i have all his same equipment.. fluval 403 and substrate..the aro hasn't eaten since i got him and its almost been a week..he is getting skinny..he was good and big when i first got him..i tried the food he gave me..hikari gold...krill and also worms..still will not it..i do a water change everyother day my readings are fine but my ammonnia is up at.o25..what do i do
