Originally Posted by Coleallensmom
Just had to say great tank!
You too, Dragon. LOVE the first tank!
We put a lot of work into that one. It originally had black sand but we took it out thinking it was the root of our pH issues. When we changed to the Eco/3M mix, we found it wasn't the problem. Now we run CO2
for the plants and our pH stays steady at 6.5 even with a water change.