Concrete is made with lime, Volcanic dust is available at most garden stores as azomite.
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Can you buy Play Sand near you?
Itâs cleaned and usually pretty good quality quartzy sand.
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Sorry for your health issues, I think they look overwatered but not that bad after your long absence, I trust you will be able to recover them ⊠
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Iâm going to try the sand I got outside. If it didnât work, Iâd try to get the azomit or the playing sand.
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I would rinse it and bake in oven for a few minutes to kill foreign stuff.
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They didnât seem spilled to me, the leaves were down, and the pots were light. PH I have 6.4, Ec toppings 20 and what flows out of the clay is Ec 24, so I will probably have them over-washed, but I donât really understand Ec.
Great idea. Thank you 
I have a Milwaukee CD611 EC meter. So I donât get it. I guess Iâm stupid for this.
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I have to search for everything: 
https://milwaukeeinstruments.com/milwaukee-conductivity-pen-ec/
So in the most used scale (Hanna) the results in ppm would be:
2.0 EC = 1.000 ppm
2.4 EC = 1.200 ppm
which according to this:
depending in what stage of the flowering cycle you are might be too much, since when you flipped and how many days left? 
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The two in the back have five weeks with the biggest buds and the rest three weeks. I give fertilizers according to the instructions and only once a week. I water twice a week on average.
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Great thread and work !
I was just thinking about how sucky it wouldâve been to.done all this training and ended up with males.
But xcounter though - it would be great practice.
I donât think. I would try mainlining with fems until I am a bit more experienced.
I will try my luck on a reg run and practice topping a bit more.
I understand the theory. And have done topping and fimming .
But doing what youâve done right to the very first node is friggen insane !
Great work
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@Lapolda hello my friend, stopped by to see how your doing.
teplota pĆŻdy a listĆŻ rostlin musĂ bĂœt teplejĆĄĂ. pH se zvyĆĄuje a sniĆŸuje a brĂĄnĂ rostlinÄ sprĂĄvnÄ pĆijĂmat ĆŸiviny.
Jde vĂĄm to skvÄle, neustĂĄle se uÄte svĂ© ĆeznĂ© dovednosti, je to umÄleckĂĄ forma pro zahradnĂky
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Hello, everyone. Iâm getting helpless the first two photos of durban. Large leaves yellow and then dry. The little oneâs made of a sledgehammer. It has brown mapy.
Second Green Poison F1 fast Version, the leaves from normal green go into light green and eventually yellow and wither until they eventually fall off. Iâm starting to suspect the room temperature is to it. When flowers have a night, itâs about 15 degrees.
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Otherwise, Iâm sorry Iâm not responding very much, but in order to join you, I have to use the Orbot aplocation. And it keeps disconnecting me so I have trouble reacting or putting a picture in here
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The first pic reminds me of a potassium deficiency but the rest look and sound like a Nitrogen deficiency
I have no idea. I tried adding, but itâs like the flowers donât react. Theyâre almost all yellow now. Iâll take them as soon as I can, and Iâll harvest them on Sunday.
What week of flower are you in? If itâs close to harvest itâs normal to have some yellowing. Are you able to check you trichomes?
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Trichomas are half transparent, 40 percent milky and 10 percent amber.
