That’s a fair point but I have been growing for years without problems. And why the sudden change under the light but temps and humidity have remained the same. Also the light just looks funny, not normal having so much a lack of white light
Must be something to do with the light. I got a 450 a few days ago and the same has happened to mine. Moved back under the cfl for the time being and they are thriving again. Any ideas anybody? Is yours the same @Kpall ?