I modified my barrelponic system to contain all water float beds. Also I made a 36" long Bio-filter, so for the moment I have a 12" pre-pump filter and a post-pump filter. The filter is screen scrubbers made in Philippines for scrubbing clothes by hand. I also used them as net pots. the Tomato roots have taken off and the basil is also growing faster. Lettuce has always done well.

the pH is 6.8, the ammonia is 0.5, the Nitrite (a little spike) is 1.0, and the Nitrate is 0.7. All seems well for the moment.

If you like you can go here to see the pictures

http://chette.tripod.com/id40.html