I have on and off over 50 years staring with a 10 gal. an now 120 gal. The good thing now is the web for reviews, it seems all pointed to NLS pellets so I tried at first Tangs. liked it 3 months later my fish stop eating after testing all water quolty I tried Aqueon Cichlid mini Pellets an my Tangs are very happy. And a plus its $4.00 cheeper.