Sudden spike in Nitrites
Just need some advice here. Just did a 20% water change, dosed seachem flourish, new filter bag same bio media. Now I'm having a NITRITE spike between .25 and .5 (hard to tell on API test). Ammonia is 0 ish, NITRATES between 5 and 10ppm. Could it be my tap water (treated with H2O conditioner, stirring up substrate, or worse problem with beneficial bacteria?
Just tested tap. Usually its 0 for Nirtites but today it has some in it so Im assuming my 20% w/c caused the spike. Thanks
Last edited by Darkblade48; 05-31-2016 at 11:50 AM.
Reason: Please use the edit function for back to back posts to keep threads cleaner