I agree with not needing to tumble. I have it underneath my 60 and 240 and it grows just fine in both. The bottom does not die off due to lack of light as I have heard some people mention either. I think that is the thought behind tumbling it. I just use a shop light with a regular bulb. Nothing fancy. I also do not have a pump to push water through. I just use the natural flow that the return pump creates.
Sent from my iPhone using Aquarium Advice
__________________
|