I would put the ro
unit on your will buy soon list. Even with a fowlr
you might have algae issues over time if you use tap water. For sure fill her up with it though so at least you are starting off right. There are many options for ro
units out there for around $100. I have half a dozen tanks up at any given time so I splurged on the BRS unit for $180 but thats not entirely necessary unless you want the bells and whstles on the unit. I just saw several units on ebay for about $120 last night so you might wanna start there. When I started my tank(s) I was using a portable ro
that I got from ebay for $60. About a year or so after getting it I needed new filters so I just got the larger unit from BRS. But if budget is a major concern I would look into the portable unit. It is sold by purewater club on ebay. Check it out and if you have any more questions about it just ask.