Brown layer on top of my water

[Beverly]

Originally Posted by Beverly

And I'll be water testing today too to see if any ammonia or nitrite has appeared in the 42 :-)

Tests for the 42 gal hex:

Sunday night (the day after adding all livestock with well-cured rock):
ammonia 0 ppm
nitrite 0 ppm

Wednesday afternoon:
ammonia 0 ppm
nitrite barely registering a colour change which I judge to be .01 ppm
(This must be the beginning of the spike!!!! Egads!!)

Still some scum on the 42's surface. Tilted the 802 a little more upward, and added a second source of surface agitation at the other end of the back panel of the tank - a Whisper that came with our 2.5 nano - and filled the media chamber with a Mini foam. This puny thing just barely moves any water compared to the 802, but it moves it right at the surface, so it may end up being useful afterall :-)