Since last summer, I lost the green table to an RTN. Not sure what happened. Also had a red table that wasn't affected and was next to the green table. I tried replacing to have it's fate to be the same as the original colony. Maybe someday again. But for now, I'm sticking with my Red table. The monti. cap has also been trimmed in half and now I'm finding I may have to trim it again.
Thanks for all the compliment. Hopefully many of you will also share some pictures of your tank.
The only change in the system is the water filtration is now a RO/DI unit. The Kold Sterile can not for the life keep up the water quality for a long period.