My question is: Is there anybody that have used Cat Litter as the only substrate in the tank? Have there been some problems with planting in Cat Litter, the Cat Litter seems somewhat light weight. I thinking about if there will be problems with plants floating up from the Cat Litter if it is used as the only substrate?
I found this thread not too long ago and decided to go for it. I use root tabs and have capped mine with sand. So far so good. Here was an inspiring thread for me. So long as it's only clay (non clumping, non scented) it should work.