HI, I just read this article and having some knowledge in aquariums I was pleased to see it. However let me say with a tinge of dissapointment that the person has very rich tastes when it comes to aquariums India is a tropical country so i do not know why we require the heaters to stabilise the water temperature. unless ofcourse you are in the extreme climates where the water temperature dips real low.. 2ndly fish are cold blooded.so assuming that the water temperature doesnt dip rapidly(like losing 5 degrees in abt 5 mins or so) there is no cause of worry Compatibility of fish is imporatant but more important is the knowledge of the environment in which the fish lives.So the begineers cud start with gupies and mollies.. Oscars are way up the order to rear. in any case tehy are exteremely carnivorous and arrowanas well they are simply very costly so please dont start with it. n again it is very carnivorous.n fish feed shud be consumed within 5 mins... if ur in a plae where ur local shops sells live feed please use it....its good for the fish...contact me if u have more queries... and please one last advice before parting.. marine aquariums are white elephants
