Best RO unit?
I'm going to get "serious" with CRS this time after my dad wiped out the whole population and I'm going to probably need a RO unit. After reading a TON of threads... I've realized I need a RO unit and ADA soil to get success. Is a TDS meter necessary? What RO unit does the job and is not too expensive? I found one for 200$ in my LFS... pretty expensive. What do you guys recommend or use?
That one guy that is always online.