Grow tent for Orchids questions

[akhenenra]

Hi everyone,

I have a grow tent in my basement that I use for a variety off plants. I got a mini phal as a present about 18 months ago and I stuck it in there after blooming to just see what happened (I've never been great with orchids before). anyway it seemed to thrive and I do love orchids so I got a bunch more and have them all in there. I'm curious if anyone has any experience specifically with a grow tent.

The tent is 5x5, I have a 600w HPS light in there, exhaust fan, humidifier. Light 18 hrs a day. When the light's on its around 80 in there 60-70% humidity. Lights off it's around 65 depending on the season.I am sometimes concerned the light is too strong or hot for the orchids but I have done the feel test on the leaves and they are not hot to the touch, but warm. they are low to the ground in there so about 4 feet away from the light. They are all potted in clear plastic orchid pots with a mix I made of 60%bark, 30%leica balls, and 10% perlite. I come around and mist then regularly but I am still trying to figure out the best watering schedule for them, kinda by trial and error. I have variety of FoxFarm fertilizers from my other plants and am low key experimenting to see which one is best for the orchids (diluted).

Any thoughts please let me know. I have heard LED lights are better for orchids but I have other plants in there so I need to compromise. For the orchids, I have phals, cattleyas, dendrobium, oncidium, vanda. Most of them are babies I got on the cheap so I am hoping to get them to mature and bloom in the next 1-2 years. I know different orchids have different light requirements so some advice would be appreciated, or if you grow in a similar setup and have some tips please let me know! I would really appreciate some advice or critique of my system. Thank you!