do i need r/o water when cycling

[Myka]

Personally I think you can cheap ou on RO/DIs...it's all the same cartridges, it's just the build quality that is different. Check out ebay and www.bulkreefsupply.com You can always add the DI chamber later on if you want to deflect some cost for now.

[bill_e]

kool will check out ..thanks.