Difference between different flourites?
Flourite, black, dark, red
Other than particle size and colour, what other differences are there really?
Edit: btw for a 130L (35g) tank how much flourite do I use? the 3.5k bag or 7k bag?
Last edited by Silhouette1080; 05-05-2018 at 07:44 AM.
Reason: additional detail