Someone told me that "bait shop" earthworms had a high nitrate content and that they could be hazardous to amphibians. Is this correct? If so, could you change the substrate and feed properly, thus reversing the high nitrate problem?
I don't think a high nitrogen content in the food would be reflected in the nitrate levels. As far as I know all animals use urea as the carrier of excess nitrogen - the worms excrete their urea in their castings.
The problems seems to be that worm farmers spread pure urea into the substrate to increase the nitrogen content in the worm castings(which they sell as plant growth enhancer).
I'd say that homeostasis mechanisms will keep the total nitrogen levels in their body rather constant, if they load the substrate with too much urea they will most likely screw up the mechanisms at work resulting in intoxication and death.
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Hi all I'm new here I'm just looking some advise on cycle witch is currently driving me insane . So we are week 8 I'm dosing daily with 4pp of amonia and for the last week has been dropping to zero witch I no is good. But my question is my nitrites are sitting at between 0.50 and 1.0 PM and nitrates are between 10 and 20 and neither of these seem to be dropping. I have done 2 40% water changes a few days ago and no change the only thing I can think of is I didnt use the seachem stability stuff which I have now ordered but surely that shouldn't have much difference this far into cycling
Dropping ammonia with rising nitrate and nitrite is good. It means the nitrifying bacteria is working. You just have to remove the nitrate from the water doing water changes. The level of nitrates is high and the nitrate is also high. The nitrite will be converted to nitrate using the beneficial bacteria and you can add them using quick start or allowing them to naturally grow in the tank. The latter option will take longer. The nitrate can be used by plants, so live plants can decrease the levels, but I would do a water change to get the nitrate at a level that is lower than 5 ppm. 5ppm of nitrate is natural and a good place.