Nitrate spike - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 12-08-2005, 12:20 PM Thread Starter
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Nitrate spike

I just had a huge spike in nitrates. I noticed an outbreak of fuzz algae and tested the water. Everything was normal except the nitrate reading was so high I wasnít sure of it Ė 40, 80, or 160! It normally runs 15 to 20.

Here are my specs:

150g
240W for 2 hours, 560W for 5 hours, 240W for 2 hours
Pressurized CO2
PH 6.4
KH 5
GH 9
No nitrites or ammonia
100% Flourite

EI Dosing:
1t KNO3 3x
1/2 t K2SO4 3x
1/8 t KH2PO4 3x
2t MGSO4 3x

CSM+B on alternate days

The day before I had done some pruning and pulled a couple of plants out. I have heard of spikes when fertilizer sticks are exposed, but I donít use any. Could stirring up the Flourite do this?
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post #2 of 4 (permalink) Old 12-08-2005, 02:00 PM
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I use flourite, for 2 years now, and never had an uprooting, even a massive one, spike nitrates like that.
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post #3 of 4 (permalink) Old 12-08-2005, 03:05 PM
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I noticed the same after a large pruning. I guess I took too much of my "Big Nitrate" eaters out.

Walter

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post #4 of 4 (permalink) Old 12-08-2005, 05:59 PM
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I don't know what you guys are doing, but I can't keep nitrate in my tank at all -ever. Want to send me some of your nitrite?
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