It all depends on the quality of your tap water. You may have contaminants in there that you can not easily test for. I would recommend getting a report from your local water company and go from there. I have a small tank and my tap water is soft so I use a TWP
, and it works fine for me. Other folks with harder water will find that a RO
unit is more economical. If you are having success using tap water I would say don't bother. But as soon as you have chronic algae problems, trouble keeping invertibrates alive, etc., the first thing to examine will be your water source.
, 65 lbs Fiji LR
, 4" Aragamax DSB
, Coralife 2X96w CF
, CPR Bakpak II, CPR Aquafuge 12 w/ 2x9 Coralife Mini Aqualight, 4 Maxijet 600's, PCI 200W Titanium Heater, 2 Blue Green Chromis, 1 Gold Bar Maroon Clown, 1 Purple-Stripe Dottyback, Finger Leather, Trumpets, Rose Coral Open-Brain, Pagoda Cup, Xenia, Star Polyps, Yellow Polyps, Various Mushrooms, Toadstool Leather, 12 Astraea, 10 Nassarius, 4 Bumble Bee, 6 Cerith Snails, 12 Red Tip Hermits.