Yea I'd be interested to hear what people have to say as well. I only recently started testing my dKH and it was low too. Around 7 or 8. I used baking soda to up it and now it's more like 12 or 13. From what I understand, algae doesn't have an easy time growing with higher dKH. That's why I raised mine. _________ 125 Gal Reef. Born March 2002 FISH: Ocellaris Clown, Yellow - Powder Blue - and Hippo Tangs, Sand Star CORALS: Green Striped/Red/Purple Mushrooms, Green Star Polyps, Yellow Toadstool Leather, Bubble, Frogspawn, 2 Hammers, Yellow Polyps, Open Brain, Ridge Leather, Various Zoas, Button Polyps, Kenya Tree, Colt, Elephant Ear Mushroom, Clove Polyps, Torch, Purple Clam, 2 Rose BTAs  | 
