Reset button on tank parameters (mainly nutrients) - The Planted Tank Forum
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post #1 of 1 (permalink) Old 04-02-2018, 06:33 PM Thread Starter
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Reset button on tank parameters (mainly nutrients)

Hello all,

I am seeking some advice for my tank. I finally got around to testing my water parameters this weekend before doing a water change - and the day after doing the water change, before dosing.

It seems that some of my levels are too high, mainly nitrate and phosphate. Before water change, my nitrate read at about 40 ppm and phosphate at about 5 ppm, according to API test kits.

After the water change, the nitrate did get a bit lighter, maybe around 30 ppm? Phosphates went down to 2 ppm. I did a 50% water change - I've tested my tap water and it shows up "clean" for the parameters I test for in the aquarium (no ammonia, no nitrite, no nitrate, and no phosphates).

I have noticed what looks like is the beginning stages of BBA on some of my leaves (black edges and a little bit of tufts on the tips of windelov java fern, it doesn't look like the beginnings of roots during propagation). Obviously given the parameters I've found, things are a little out of whack with nutrients. Oddly, the black stuff didn't show up until AFTER injecting co2 - before co2 it was overrun with green spot algae, which has all but gone away from all plants but the anubias (darned slow growers).

So next water change day (this Saturday), I was going to do some of the conventional treatments for killing BBA and see how that works.

Oh, I'm dosing the recommended dosage of NilocG Thrive - 3x a week, one pump per 10 gallons, 50% water change.

What I'm wondering is, would it be a good idea to do a massive, like 80-90% water change, to reset the parameters and nutrient levels of the tank moving forward? I'm pretty certain that why things are out of whack right now is totally my fault (duh), but I'm unsure of how to fix it.

Giant water change and move forward being more meticulous about dosing or reduce dosing while levels slowly come down in line?

Yeah, I know that more plants will help a lot too, and I'm working on getting more in there as well.

Growing a decent amount of windelov java fern, water wisteria, crypt undulata red, s repens, ludwigia repens, rosette swords, amazon sword, ozelot sword, and just planted some a. reineckii yesterday from the Petsmart tissue culture stuff. I have dwarf chain swords and pogostemon stellatus on the way.

So what do you all think?
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