Oncidium leaf spotting and bulb browning SOS
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  #11  
Old 03-01-2022, 06:00 PM
YokaYampi YokaYampi is offline
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Oncidium leaf spotting and bulb browning SOS Female
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Originally Posted by estación seca View Post
Yes. But you can mix tap with distilled to something reasonable and ensure your plants get enough calcium. It also cuts down costs. Some people think the calcium in MSU fertilizers is enough. Other people prefer more calcium.
I see, i managed to find the report.
im not too sure what im looking at or how to know how much tape water and distilled water i should mix
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  #12  
Old 03-01-2022, 06:35 PM
Dimples Dimples is offline
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Oncidium leaf spotting and bulb browning SOS
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Does it report any of these: pH, total dissolved minerals or solids, alkalinity, hardness, carbonate content?
pH will be a number with no units.
The others will have units like ppm (parts per million) or mg/L.

TDS = total dissolved solids

What are the values?
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  #13  
Old 03-04-2022, 12:35 PM
YokaYampi YokaYampi is offline
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Oncidium leaf spotting and bulb browning SOS Female
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pH will be a number with no units.
The others will have units like ppm (parts per million) or mg/L.

TDS = total dissolved solids

What are the values?
Sorry for the delay, the information is only in french so very hard to find and translate aha
for
Ph it says 7.81
for solides its 179
magnesium = 8.22
calcium = 32.45
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  #14  
Old 03-04-2022, 05:47 PM
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That water isn't too bad for those plants. It has enough calcium and magnesium and the pH isn't dangerously off. I think you could use tap water most waterings for your orchids. Watering them thoroughly so the water runs out the pot will prevent mineral buildup. You could dissolve the fertilizer in the distilled water once a week.
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  #15  
Old 03-04-2022, 05:50 PM
YokaYampi YokaYampi is offline
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Oncidium leaf spotting and bulb browning SOS Female
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That water isn't too bad for those plants. It has enough calcium and magnesium and the pH isn't dangerously off. I think you could use tap water most waterings for your orchids. Watering them thoroughly so the water runs out the pot will prevent mineral buildup. You could dissolve the fertilizer in the distilled water once a week.
They seemed to love it before but the build up scared me. Not to mention I got a vanilla orchid that seemed to be suffering with the tap water. Thank you for taking the time to really help me! Honestly I appreciate it so much!
Do you think maybe doing half distilled half tap would also be okay on normal waterings? Or really going full tap and distilled with the fertilizer?
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Old 03-04-2022, 06:22 PM
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You could also dilute tap with distilled. I'm surprised you have salt buildup. I have more mineral content in my water. I mix rain and tap, but sometimes I don't have time and use tap water.
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