I tested Nitrates today and it was relatively high.
So, I did a 3 gal
water change on my 10 gal
This is the reading I got now after the water change.
To be honest I'm not quite sure how to interpret the readings. Do you place the vial directly on the card to compare colors or hold it a bit off of the card?.
Anyway, I interpret this to be about 20% ..... an acceptable level .
It's difficult to tell just from this pic.
In any event, I understand that this test is just a rough indication of a Nitrate content. Is there a better test available?
BTW, I am now trying to feed just every other day .... on even number days