How important is a RO/DI unit for a beginner?

[RubixCube]

I am just starting a new 77 gal tank; I just used conditioned tap water to fill it. The water here is pretty good as far as being “clean” But I have been looking at some RO/DI units and I hear a lot of people talking about them. I was wondering if this is part of the “must haves” I want to have the least amount of trouble with this tank as I can. Thanks

 

[cj10488]

Ro/DI is very helpful not only for a beginner but for even the most experienced.. It is not a must have but is a GOOD thing to have.. For the least amount of trouble I'd suggest getting one.. Ebay has great prices.. I got mine from Filterdirect on Ebay for about 125.00 delivered to my door

HTH,
James

 

[reefrunner69]

Whether the RO/DI is a "must have" or not is dependant on the quality of your tap water and they type of tank your setting up.