Zoone

Finally i have a working automatic nutrition dosing system.

This is fairly the levels i dose:
5 ppm NO3
0.75 ppm PO4
5 ppm K
0.1 ppm Fe

One week of dosing should only be able to give these maximum levels (if the plants uptake is zero): 
35 ppm NO3
5.25 ppm PO4
35 ppm K
0.7 ppm Fe

One week ago i made several massive water changes to set all levels to zero, this was mainly to be able to check the auto dosing.

This is the levels i got one week later:
50ppm NO3
5ppm PO4
0.2ppm Fe

Ph 6.0-6.1
KH 1.25
GH 4

Calculated CO2 about 30ppm

A quick check at the Fe level tells me that the nutrition uptake is quite good but the NO3 and PO4 levels are quite high but this i would guess is because i feed my discuses fairly much.

I’m thinking of doing this test next week, same massive water change but this week i will not feed the fishes i hope this will show what i’m adding and what the food is adding.