Well, first off I'm new to the piranha keeping hobby and as so may not be able to keep up with some of the things you guys say but I know a little, so I'm sure I can figure it out 
Anyway, I'm buying a 150g tank that is 70"x24"x24" or right around that size anyway, Its a beautiful tank and comes with some small amount of items, but I will most likely replace most of them. I want to get a list of things I should get for it: heater, filtration system, power-head, etc. I was also wondering about the RO/DI systems and what you guys thought of them, I live in Indiana which has very hard water.
As for cycling the tank I was wondering what type of fish would be good to put in to get the cycle started, I will have 4-5 RBP and maybe 1 or 2 Piraya's in the tank but the Pirayas will come later on in the year.
Anyway, I'm buying a 150g tank that is 70"x24"x24" or right around that size anyway, Its a beautiful tank and comes with some small amount of items, but I will most likely replace most of them. I want to get a list of things I should get for it: heater, filtration system, power-head, etc. I was also wondering about the RO/DI systems and what you guys thought of them, I live in Indiana which has very hard water.
As for cycling the tank I was wondering what type of fish would be good to put in to get the cycle started, I will have 4-5 RBP and maybe 1 or 2 Piraya's in the tank but the Pirayas will come later on in the year.