86F is good any higher than that you might get hermies. Some alternatives are ; try making cool tubes for ur lights/get CO2 / get an A/C or like u said go for 1 light n see what happens. You could also try to get some CFLs along with 1 MH.
BukDatAss Reviewed by BukDatAss on . NON-STOP TEMP. INCREASING, HELP! My grow room is at 86F (30 Celcius) and might still be increasing, I have two 1000 w MH which is alot for my grow room, which is about 7'5" x 9'5" x 9', but i have strong airflow from outside. the problem is if the air is hot outside then i am blowing hot air into my grow room. i think i should just run 1 1000w light over all of them insteaded of 1 on each half. any support is needed thanks Rating: 5