First day of EI dosing, horrible "chemical burn" smell?
Today around 8:45AM I dosed my first round of EI for my 65 gallon tank:
3/4 TSP KNO3
1/4 TSP KH2P04
1/4 TSP K2S04
10 ml of Flourish Excel
About 4PM I cranked my airstone all the way up for my daughters amusement.
About 5PM EST I left the house with a minor headache, and on the way out I thought I noticed a slight odor in the hallway but didn't give it much thought.
About 7pm we came home and had to open all the windows in the house and turn on the fans due to a awful smell that gave everyone a headache almost immediately. The best I can describe it is a horrible chemical burning smell. I was able to narrow it down to the fish tank (this is the only room that smells after a few hours of fans/windows). I suspect it may have been caused when I turned my airstone up all the way about 4pm - what I did not notice was some of the water was occasionally splashing onto the hood and running under the light where it evaporated in the heat from the lights (4x CFL). I've not been able to find anything on the internet to indicate these chemicals would cause such a smell.
The fish all appear to be fine and I've not seen any changes in the plants - of course it's only the first day of dosing, (macros only).
Thanks for your help - I'm a bit stumped.
A few details I should add:
1) I do have a DSB technically, I changed my substrate to flourite black sand last week, 1-3 inches generally sloping towards the back. It wasn't a sulfur smell so I don't believe it is hydrogen sulfide.
2) I did plant some dwarf hairgrass ~12 hours before the smell and do a ~30 gallon water change (as I lowered the water level to plant the grass easier).