Update - I have increased my dGH to 7 so far, raising it 1 dGH per biweekly 25% PWC. It will be at 10 dGH on 4/06. I use 2 buffers to stabilize my pH at 7.3 - 7.4. My tank water is very clear and the fish look happy and active, with a lot of gliding across the tank going on (rainbows and tetras together, scissortails by themselves).
My 2 female rainbows are still at the surface, open mouth breathing. One of them does occasionally leave the surface, but the other is there constantly. They are not eating. Not sure if I should give the one more time or not. I always know the right decision to make for my animals, but as I am a newbie to fish, I'm not sure. Will see how it goes over the weekend.
Question - I have researched all my tank residents profiles - pH can be from 6.5 - 7.5. Would it be a change for the better if the pH was 7.0 and if so, over what time period would I make the change? It's not a problem to lower it as I use a specific ratio for the 2 buffers to achieve a specific pH. All I would need to do is to slightly change the ratio at each PWC.
Last edited by gronlaura; 03-28-2013 at 10:16 PM.
My 75 gal Journal & My Dual 29 gal Journal
75 gal - Pristella Tetras, Scissortail Rasboras, Neon Dwarf Rainbowfish, Leopard & Zebra Danios, Wild Caught BNP
29 gals - Left Tank - Diamond Tetras. Right Tank - Harlequin Rasboras, Peacock Gudgeons
Future 40 Long - Panda Garras & Glowlight Danios
"Life isn't about waiting for the storm to pass....it's about learning to dance in the rain"