Arows may not jump for a year or they could jump every day for a few days .. they are unpredictable... in the wild they jump up and catch flying insects so this is a normal activity for an arow... baby and juvenile arows can slip through the smallest holes on the top of tank.. so make sure you tape up the openings...later on the arow needs a weight on top.. because he can jump hit the glass and come out... many arows are found on someones floor due to now knowing... so always be on quard ... other then that the arow is easy to take care of.. pristene water conditions are what you opt for for all fish... and they eat pellets, arowana pellets, shrimp and krill..frozen silversides but most frozen blood worms when they are young...