In fact, moss are less sensivive to pH value as compared to the temperature. Under high temperature, the moss will suffer slow growth rate, and the color will be changed from green, to dark green or even brownish green gradually.

When the moss (including Flame moss) is placed into high pH value (or any water with higher pH value than its previous habitat), it will stop growing for about 1 to 2 weeks. Be patient and wait for it to adapt to the water condition. Once the Flame moss “get used” to the new pH value, it will continue it’s growth.

This is what we have experienced before - please feel free to comment if you have different case in your aquarium tank!

:)