gonewild

Oyster shell helps but never can balance completely. When a root contacts an acidic piece of bark it's acidic. But the water/fertilizer...

I don't like any of the modern bark choices. That's why I'm using non organics now. If you must use for ark add a lot of oyster shell...

Consider checking your pH. Fir bark is very acidic. Possibly low enough to kill phrag roots. For bark is listed as having a pH of...

Your mix of medium fir bark charcoal and hydroton will work better. I'd recommend using at least 50% hydroyton. My upcoming batch of...

It's possible the roots are dieing from the salt/pH problem with the eucagenera mix. The osmocote could be releasing too much fertilizer...

Did you add the osmocote fertilizer or did it come with it? It could be creating a salts problem in the media with your infrequent once...

The mix looks way to dense and moist. Consider reporting into leca stone. Use semi-hydro style pots with side drainage holes keeping all...

Have you said what your substrate consist of, I've not read the whole thread? If you're watering only once per week and roots are...

1223.4 FC for 12 hours a day is a good starting point.

What time does the sun move away? To know the the total hours of full sun hitting the plants.

How many hours per day do they receive full sun?

With your 2500 FC on for 14 hours the DLI calculates to 25.0. five times more than the plants are going to use. Here is a phrag...

At 14" from the lights it measures 860 FC. The DLI is 6.90 with 12 hour lighting. I think phrags need less than a DLI OF 5.0. that would...

How wide is your grow area? I'm using 3 tubes covering 30" width. Also in my opinion 12 hours of light is correct for phrags. The...

What was the distance from the light to the light meter and how many light tubes are above the meter? My Barrina tubes don't emitte 2500...