I’ll add this with promix Bx I water in the soil 6.3-6.8 range and never have issues lower ten 6.3 I have had issues I’ve been using the promix fir some time now and treat it the same as soil @DATAPAK420
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@GreenCoat I’m not ysibg that promix.im using this stuff…
Product Description
PRO-MIX 28.3L Premium Potting Mix
Suitable for potting and repotting plants in containers
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Formulated with natural coconut fibre to safely hold and control moisture levels
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Contains a slow release fertilizer that feeds for up to 9 months
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Contains mycorrhizae, which promotes strong, healthy root growth
Components: Canadian sphagnum peat moss, coconut fibre (coir), perlite, limestone, slow release fertilzer and mycorrhizae
What nutrients are you using ?
You’re in 
Following @garrigan62 steps relating to Hydro/Soilless/Coco – 5.5-6.5 pH
Yes, that is a soilless medium and that has slow release fertilizer in it. I would get some runoff numbers and see how hot it is 
Okay so I’m learning here. My new Dr. Meter pH meter should be here in a few days. The first one I bought for $10 the bulb broke almost immediately. I’ll start dropping the pH right now. I’ll get some runoff readings on the next feeding
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@dbrn32 thanks!
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Just wanted to add if your using a mix with slow release Fertilizers in it let your plant go a little bit further without nutes then you normally would let the plant suck em up abit adding Fertilizer to Fertilizer is gunna burn…a plant will sure let u no when it wants something 
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what an awesome, educating read !