Sounds like it gets lots colder than 60-70 at night.

I am no expert but try misting them with a
spray bottle/h20. Is the light at the right distance
from the plants? jalapenos are pretty hardy plants
i only give mine enough water so they do not wilt
and it keeps them pretty happy. hope i could help.

well about a week ago i used the hps light and heater at sepaerate times(light during day and heater at night), and the temp did get low enough to make the plants wilt.but i fixed that and now the temp really doesnt go under 55 degrees at night. usually about 60 to 65.the hps was about 18 inches and now is about 12in away to try and supply more heat.i did have pictures but i cannot get the memory card to load on my computer.

i was looking at the "plants look sick" under hot pepper forum and there is a picture that actually resembles mine a little.it is the fourth one down but is not as bad as mine.Is there any possibity that it could be lack of co2. What would that do to a plant anyways. thanks jason

sorry guys its actually the 5th down.