Kelpmax in Netherlands

[Mr.Fakename]

Interesting. I use the same product monthly, and can't see anything. Maybe 4mL/L is too much.



Recommended dosage is 1-4mL/L, so how much do you actually apply?

[Shadeflower]

Alg-A-Mic was the first fertilizer I started growing with back when I had no idea how to fertilize.
I ended up causing the biggest root burn using 4 ml/l. I was so put off using it I have never gone back to it but they are all roughly the same. Doff which I use at the moment recommends 30ml per 10liters. I use 1/30th of that on top of my regular fertilizer.

I am pretty sure 40ml of Alg-A-Mic per 10l would raise the ppm of the water over 400. If you only use it once a month that should not cause a burn but I think Alg-A-Mic is more potent than it seems. I'm too cautious to use it again but in small doses I'm pretty sure it's the same as any other seaweed extract on the market.

[camille1585]

Originally Posted by Shadeflower

Alg-A-Mic was the first fertilizer I started growing with back when I had no idea how to fertilize.
I ended up causing the biggest root burn using 4 ml/l. I was so put off using it I have never gone back to it but they are all roughly the same. Doff which I use at the moment recommends 30ml per 10liters. I use 1/30th of that on top of my regular fertilizer.

I am pretty sure 40ml of Alg-A-Mic per 10l would raise the ppm of the water over 400. If you only use it once a month that should not cause a burn but I think Alg-A-Mic is more potent than it seems. I'm too cautious to use it again but in small doses I'm pretty sure it's the same as any other seaweed extract on the market.

It sounds like it's much more potent stuff than Kelpak/Kelpmax, which is dosed at 4ml/L for orchids. I've been using it for a year and never saw any burned roots. Thanks for the heads up, I'll keep that in mind if I ever try the Algamic!

[Mirjam]

Originally Posted by Mr.Fakename

Interesting. I use the same product monthly, and can't see anything. Maybe 4mL/L is too much.



Recommended dosage is 1-4mL/L, so how much do you actually apply?

It is 1/8 or 1/4 of 1ml. I add 1/8 at every watering, which is about 1x week in spring/summer.

The 1/4 I use to soak orchids before repot.

I can imagine that it can lead to root burn, as there is a huge difference in growth speed of of orchids and cannabis

[Mr.Fakename]

Originally Posted by Mirjam

It is 1/8 or 1/4 of 1ml. I add 1/8 at every watering, which is about 1x week in spring/summer.

The 1/4 I use to soak orchids before repot.

I can imagine that it can lead to root burn, as there is a huge difference in growth speed of of orchids and cannabis

I've been spraying my plants daily with an 1/8 of a mL for a week, and it seems to be working.

There's a lot of new roots, and old ones are either branching or starting to grow from inactive tips again.

I can't attribute this success to good summer weather; and the only thing that changed in this time is Alg-A-Mic dosage, so I'm going to assume it's related.