I started my skeeter pee on 2/11 SG was at 1.070 then after 5 days it was at 1.050 then added rest of ingredients 0n 2/16 now on 2/20 SG is only at 1.040. I will say the temp has not always been over 70 degrees. is this normal or should I find some way to keep the temp closer to mid 70's