The Darker Side Of Cycling.....

[Themuleous]

Seems to be going in the right direction.

Sam

 

[George Farmer]

I was going to leave an update until I had at least 2 sets of readings ... but there has been a large
spike in both NO2 and NO3, combined with a slight drop in PH, Gh and KH.

Date 07/01/07
NH3/NH4 3
NO2 3.3
NO3 50
PH 6.6
GH 130
KH 0.5

This gives an idea of the changes to the water chemistry after 16 days cycling under a total blackout. I'll post a full set of graphs once the water has stabilised.
View attachment 40631
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View attachment 40633

During this time my PH has dropped from 7.5 down to 6.6 and the KH is down from 11 to less than 1.
The current NH3/4 reading could be slightly lower than 3, the colour was mid way between the colours on the ref chart, so I took the highest reading !

The NO2 graph is pretty much in line with the graph for ADA Aquasoil and Powersand shown in Vol 38 of the ADA AquaJournal (English edition).

Hopefully the next week will see things settle down a bit.

Al

Neat. A+