The Planted Tank Forum

The Planted Tank Forum (http://www.plantedtank.net/forums/index.php)
-   Fertilizers and Water Parameters (http://www.plantedtank.net/forums/forumdisplay.php?f=11)
-   -   Zero Nitrates? (http://www.plantedtank.net/forums/showthread.php?t=203052)

jhays79 12-30-2012 11:58 PM

Zero Nitrates?
 
My 40g tank has been running for about six months now. It's dirted, t5ho lights 80 watts roughly 24 inches off the substrate. I dose Seachem Iron, Flourish, and Potassium 2x a week. I also do a 50 percent waterchanges weekly. I have swords, java fern, crypts, Anubias, and dwarf sag. The plants are growing, not super fast but not slow either. One thing I have noticed is they swords in particular just don't look very lush, even the new leaves it grows are dull. They actually are very veiny looking leaves. I tested for nitrates today, which I usually never do, and it came up zero ppm. The tank is lightly stocked with 8 xiphophorus mayae swordtails. I'm thinking I need to dose Nitrogen, would that be correct? Are my plants starving?

Darkblade48 12-31-2012 12:29 AM

Yes, your plants are probably starving for nutrients given the amount of light you have and the fact that you are not dosing nitrogen.

Rather than using commercially available products, I would recommend you use dry fertilizers, since they are much more economical in the long run.

jhays79 12-31-2012 12:38 AM

Quote:

Originally Posted by Darkblade48 (Post 2134498)
Yes, your plants are probably starving for nutrients given the amount of light you have and the fact that you are not dosing nitrogen.

Rather than using commercially available products, I would recommend you use dry fertilizers, since they are much more economical in the long run.

I will need to look into the dry ferts for sure, but for the time being I'm going to run to my LFS tomorrow and grab some Seachem Nitrogen! Hehe

Kathyy 12-31-2012 02:10 AM

Might try some phosphate too. Good stuff phosphate, plants love it and it discourages GSA in my bright CO2 enriched tank.

82nd_Airborne 12-31-2012 02:18 AM

You could also reduce the amount of water you change weekly, this would keep you from removing the nitrates that are actually present naturally.

phishfriend 12-31-2012 02:35 AM

http://http://greenleafaquariums.com...rtilizers.html

jhays79 12-31-2012 04:41 PM

Thanks for all the advice, I grabbed some phosphate and nitrogen today at my LFS. Going to see what happens...

laqu 12-31-2012 04:43 PM

what should the nitrates be?

Diana 12-31-2012 06:30 PM

Nitrates can be anywhere from about 5 ppm to 20 ppm or even higher for the plants. When it drops too low that suggests the plants are starving for N.

Which Flourish product are you using?

Any source of carbon?

james1542 12-31-2012 06:46 PM

Maybe you just need more fish. And wouldn't the dirt that surrounds your sword plants roots be an excellent N & P source?

Diana 12-31-2012 07:55 PM

Fish are not the source of fertilizers. Fish food can be, but it is pretty expencive and when it rots in the tank is not pretty.

Soil may or may not be a source of any of the elements the plants need. It can be, but the plants use up those elements if they are not constantly being added.
A good soil will hold the nutrients available for the plants, research cationic exchange capacity.
But, like nice dinner plates, the soil needs to be refilled.

jhays79 12-31-2012 08:45 PM

I was using two bottles of DIY co2 but I decided to stop that when I noticed the plants were looking strung out for lack of better words. I'm going to try and come up with a good fert dosing regime and tone the lights down a hair and see how it goes. I was going to also try some excel but I don't want melt me jungle Val and dwarf sag.

laqu 12-31-2012 08:52 PM

okay mine is 6 gal no co2 (till today - it's a work in progress)

every 2 days (rotating)
flourish .5 ml
trace 2 drops
iron 5 drops (i have lots of red plants)
nitrogen/potassium when i have te courage to add it (afraid to throw nitrogen cycle off)
excel every so often it leave an icky film :O
prime 2-3 drops when i add/change water

all from 1 ml pipet (so small drops)

lots of plants

everything is 0 except ph 7.4 and dkh 5 (same as my tap water.. hmm)

brogan 01-01-2013 03:34 AM

Do you have fish in the tank? I would be very surprised if your nitrates were zero if you did. I suspect your test kit is wrong.... try calibrating it http://www.plantedtank.net/forums/sh...ad.php?t=83545, or test another tank to see if you get similar readings. I am doing ei daily, and have been slowly reducing the amount of nh3 (about 1/4 reccomended amount) because of high nitrates I would have by the end of the week (= or >40ppm). Most of it comes from fish waste/food.

laqu 01-01-2013 04:09 AM

i just have shrimp

i get a small amount in my betta tanks but they are 2 gallon and i did a HUGE water change as one has some sort of infection.


All times are GMT. The time now is 06:27 AM.

Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.