Hello,

I'm having this issue with most of the cactus I have. This problem is they appear to be extremely dry, the flower stems always have a dried out shriveled look to them even when new, and the edges went from green to brown (not soft) since going under the lights. The temp range is generally between 24 and 28 degrees Celsius with humidity between 40 to 60 percent. Ppf between 500-600 for 14 hours a day. I have included some pictures so you can get an idea. I water every 10 days or so depending on soil dryness. So I'm not letting them dehydrate. It's a number because I keep trying to pollinate, but the flowers will dry up so quick multiple blooms and countless attempts to no avail.

Is it taking too much radiation from the light(LED) or are they getting too much sun? Most are gymno lb2178, but also seems to happen to my my tetragonus. I appreciate you reading this and thank you.