Why does my ejmix liquid darken so fast?? Help with melo 3 tank

[Preferredduck]

Ok I have been using the open carts for a bit and I know the liquid darkens in light etc over 4 to 5 days. Thus is darkening the same day/overnight. I am using mediCal grade ejmix. The ratio is 1:1. 1 G of goodness to 1 ML of product. I am using the .3 ohm coil running at 15 watts now. I was running at 25ish yesterday and higher the first daym I add maybe .5ml of fluid to the tank at once since I keep many different flavors. I am using a melo 3 tank with a pico battery btw. If anyone has experience with this setup let me know. I want it to get me feeling right from car wrecks I was in but also to conserve which the disposable carts were helping with. Any advice is appreciated.

Also I need to order more coils. Anyone else have any ideas on good coils for what I am doing. Low watt seems to work well for me and I'm using a .3ohm now.

 

[420time]

This has happen to me many times, i assumed it was just heat from the coil kind of decarbing it? only way to get around it was to use other types of refined concentrate like winterized oils.

 

[Preferredduck]

I read last night 50 degress C and peg oxidizes and darkens. At high watts my tank got hot. I put in the .5ohm coil at 15 watts only, puffed for 2 to 3 second intervas until I popped, and thus far no darkening or flavor change. Even the fluid on the edges was tasty this time unlike last. I think whatever plant material is left burns at decent temp and foes back in or its the peg getting hot from the coil. I can make a disposable cart do this when it becomes clogged so now I'm assuming it's heat. I read another person rus at 10 watts, I got 0 vapor then. Right now I think it's ag 18.5 but I can't pull long. I go for conservation anyways.