Higher temperatures and lower pH causes ammonia and other toxins to be even more toxic.
Was reading over the sticky thread, just wanted to offer a correction for the ammonia posioning thread. In that thread it says
It is actually higher pH values that increase ammonia toxicity.
not sure i have ever heard that it's higher pH that increases ammo-tox, i think that is incorrect. the general trend is that as pH lowers (with waste, etc) ammo-tox increases. i have never had ammo-tox issues increase with higher pH as opposed to lower pH--
--solomon
THe original info is correct.. lower ammonia is toxic.. ie under 5 generally.. but sometimes it may be lower or higher depending on the amount of ammonium built-up in the system.. as the PH plummets the ammonium ( which isn't shown on standard water tests which only test for ammonia) doing is chemistry wooha (scientific info insert here) bonds are created/destroyed ect.. and the ammonium suddenly becomes toxic ammonia again.
PH levels will effect the out-come of an ammonia test. But they are for reading the correct amount(color) to get the correct ammonia reading. From what I understand the ammonia levels are the same within' extreames. Though I wouldn't doubt if excessively high PH values can and will effect ammonia as excessively low ones do. ie if the test tells you your at 1ppm... it's green... comparely that to the tanks ph will give you a more precise reading thats perhaps.. .9 in reality. but there is a very slim margin of inacurracy. if PH is within' the 6.5-7.8 range I've never seen a major difference in ammonia readings within' these perameters. and up to 8.2 and as low as 5.5 I've never seen a truely puzzleing ammonia reading. I have seen a 5.5 ph system that the owner bumped the heat up on for treating Ick to over 85deg and the ammonia readings did show.. that where then back to normal when the temp was dropped back to the 70's range. since there where a few variables not gonna say this the ammonium spiked to ammonia.. But the owner and I both came to the comclusion this was the case. And there hasn't been an ammonia issue with this tank since.
Ammonium often builds up in tanks that have little to no water changes. imo it is a large player in "old Tank syndrome" as it's often refered too. where a system will be just fine for monthes or years... then suddenly the PH will crash and the water quality goes berzerk.
If I'm wrong def wanna know it, and I lack the chem/lab language. someone can expand on that def.. but thats what I know of lower PH values and it's relation to ammonia/ammonium. also quick note on that KH/GH and TDS's also make their mark on low PH ammo tox from my understanding as well.
ps- apparently with my brain going from baby hormones so does my capacity to spell properly.