Whats the right ppm for nutes.

I never new how important it was to check PPM when growing! Actually I never heard about it! All I heard was, make sure room temp is 75, 18 hours light for veg, 12/12 for bloom, humidity 70% veg, 40% bloom, good air circulation, Water, fert, water and Check ph always. So I've noticed my plants getting yellowish with leaves burning and failing off. Then I came across people taking about ppm. Researched it and was like shit, bet that's my problem. Im on flowering stage. I use Floranova bloom, and humbolt Crystal burst and humbolt gravitation. Floranova recommends 15ml per gallon. Crystal burst recommends 5ml per gallon. Gravitation recommends 5ml per gallon. I put about 45ml floranova and 15 ml crystal and 15 ml gravitation in a 5 gallon. Didn't think that was overdoing it. Barely got a ppm meter today and checked my run off water. It was 3500 ppm!!! This is day 32 bloom also.

this is for HYDRO though. i don't know about soil
it is what william texier says and what i go by, when feeding:
it says:
1.cuttings
2.young,rooted plants
3.vegetative stage
4.stage of flowering and fructification
5.final stage

so you should feed with 1,8. then go on with water.

temp is too low btw

Your temperature is fine. In fact try to lower it. It helps keep the humidity down.