Need help with conversion!

C

cichlidcichlid

AC Members
Jun 15, 2006
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ug/L of Iron at 26.7 is how many ppm.

I am trying t figure out how much iron is in the the tap water because when ever I do a water change my plants start to pearl and then stop after a couple of hours.

They like the water change water better then the ferts used in the EI method.

I want to figure out what the limiting factor is so that I can fix and get this result all the time.
 
I wouldn't think that iron would lead to such a short term reaction. IMH it could be excess oxygen leaving the aquarium and showing up as 'pearling', since it immediately follows a WC. There are many on this board smarter than me and maybe they can share a better idea. I'm sure the call will be made to give additional water data and your setup. Good luck.
 
It is most likely the dissolved gasses in the tap water that are making your plants pearl right after a waterchange.
 
x2 on dissolved gasses. first of all you will have more oxygen with the water especially since you are creating lots of surface agitation with the change. also fresh water has a fresh supply of co2
 
That was something I was going to ask because I am not running co2 at the moment. I am not sure it is dissolved gases because I let the water sit a get rid of all of the gas before it goes in the tank.

The water gets poured in the tank very slowly so that I don't disturb the gravel and I don't get any bubbles on the sides of the tank and the plants. I guess it is still possible!

I think it may be either co2 or the iron because the plant take off and there were no bubbles to start with.

I just want to check does any one know the conversion for ug/L to ppm?

Is 0.01-5 good for iron?
 
i doubt it has anything to do with iron. anytime that the surface of the water is broken you have gas exchange. and unless you let the water sit for 24 hours the gas definately isnt completely off gassed.

where are you getting that number from for Fe?

which pic are you talking about ?
 
The tank with the one that has I think a puffer fish in your albums.

I found the conversion please tell me if I did this right.

For liquid solutions, ppm = mg/L

1 mg/L * 1000 = ug/L

So algebraically we have:
ppm * 1000 = ug/L

So at 26.7 it would be 0.0267 ppm.

Please let me know if this is correct it seems weird that it isn't even a ppm.
 
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