Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tetras take time to get used

I was feeding the Tetras, guppies & Barbs Azzo 9-1 micro pellets and had a tough time introducing them to New Life Spectrum Small Fish Formula .5mm Sinking Pellet Fish Food and most of the stuff just settles down... eventually gave up... But will try again with Chiclids or Rainbow fish + Congo Tetras...