Who Gives A Fish Forums

If you're worried about light blockage, you can always thin it out. My floating moss lets enough light through for my Crypts and they're doing great.

Just make sure your water params are good. Moss can be sensitive to changes in ammonia and nitrite levels.

Yep, gonna test my water before adding anything new. Don't wanna risk it.

Good call. Better safe than sorry with new additions to the tank.