Got my nano diffuser from www.aqmagic.com
and hooked up my 5lb tank today. Here's some photos:
diffuser came from singapore
packaged very well
hookin up the tank
you can see the distance from the tank to the aquarium in this photo. It's in the bottom right corner. out of the way and out of sight.
Got my levels back on track today after scrubbing some of the deposits off the big rock. Did a big water change.
hopefully I can keep these levels stable.