fishygurl
Aquarium Advice Freak
I finally got the PH tested at the LFS today, and the hardness is only .5! Thats why my Ph has been fluctuating so much! So, i was going to raise it using crushed coral, but the smallest bag they have is 10 pounds and that was 20 bucks, so the guy there suggested that i put a shell in the tank. I have these shells that were bleached 3 years ago, and i boiled it just now, it has been outside for 3 years so it should be pretty safe I think... Will this work for raising the hardness?