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i treated myself a little while ago on a super special birthday to a wentworthianum - this is the result. do we think it is a duffer? should i risk a self as they are so rare? what are your thought?

thank you so much for your patience - much appreciated. my concolor's are doing really really well under this light (flask to flowering in 2 years) . i will adjust any multi's accordingly. thanks for explaining everything. mark

thanks - here are some readings in "sample" mode . 16 - 22 micro moles/m2/sec is the readings under the benches in various places. seems very low for paphs. anybody else got any ideas? currently we run them for about 18 hours a day, which may account for the amount of growth we get on such a...

how does that affect your calculations?? is my light source too low??

our meter is the MQ- 500 from apogee - i can't see any where to change the measuring units - per second or per day.

14 PAR i believe

interesting thread - we have some under bench growing areas we illuminate with simple led strips - we get a reading of around 14 PAR, but we get good growth on most paphs. to me this sounds to low a figure, has anyone got any experience of this? thanks

thanks for sharing - we are unable to get the media you specify in Europe - what would you recommend as the closest alternative?? medium size pumice with power bark?? 50/50 mix? thank you

hi, do you mix the Peters/Ca No3 / Kelpak - and apply i once or use them in strict weekly rotation? what strength is the Ca No3 applied? thanks

please forgive me if i have missed this, but have we seen a PH reading yet?? i still think the ph is too low.

when we used peters excel, we had to adjust the PH - what ph are you at? i appreciate you are at 300 ppm - how many teaspoons per gallon do you do?

sorry this is off topic - do you not use silica at all then? would they not go mouldy if the water isn't removed?

Ray - what are you thoughts on Serenade - either liquid or powder?? i use a weak h202 as a flush wash once a month - would this instantly kill the good bacteria in Serenade? thanks

thank you - there seems to be a liquid and powder version.

hi - i have heard of this, but not found it in small quanities - the big tubs are £150 each - do you think it is worth it? does it genuinely make a difference? can you apply in the same mix as the fertiliser?

hi, it is actually 50% solution we use - it is stabilized with silver. it requires extreme caution and we only use it in specific situations with gloves and goggles - we simply use a pipette and drop single drops into the crown - should erwinia have got that far. it saves approx 75% of the...

we spray hydrogen peroxide at either 3 or 9% and find it is fantastic at killing Erwinia. Unless it is in the crown - we then treat with a 40% solution and we find a side growth often starts.

very good!!

yes, we bought 2 or 3 from Manolo peruflora back around 2015

Peruflora was the nursery i got this cross from too! about the same time as you.