The Planted Tank Forum - View Single Post - I have been dreading this thread (ferts required)
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Old 01-14-2013, 03:01 PM   #11
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Originally Posted by malloy85 View Post
Every tank is different. I have run a tank without npk for three years and had no algae. NPK in my tank causes algae as I have a large fish load. I also have gone without any measurable nitrate in my tank for 3 years. And grown a forest without it being at measurable levels. Let me stress that I understand that nitrates were present. My point is they just were not measurable with my liquid test kits.

Also guys while I appreciate the advice. I know my tank and my water parameters and really don't want or need (and I mean this in the most respectful way) convincing about npk when I stated to begin with that I was looking for a liquid fert that didn't contain any npk.
You bet no tank is the same, as for me I did experience algae outbreak in the past when I was not dosing enough NO3 and PO4. Recently in november I did grow and algae farm when injecting pressurized CO2 about 15ppm and not fertilizing at all, but my tank population was small.

Algae disappeared after I began dosing nitrates and phosphates.

Personally I would say do not assume that the fauna sends enough phosphates/nitrates in the water especially when injecting CO2, if it does, it is merely luck. Measure what you can, and watch plants/algae's behaving carefully.

Plants and algae grower.
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