Cal mag alternatives?

High,
I have finally sourced a steady supply of coco.
Now I can't get lime or cal mag where I am. (SE Asia)
Any suggestions what to use as an alternative?
I plan to do organic and have plenty of kelp, guano (high P)
Or if someone knows a highly concentrated all inclusive coco fert?
Shipping costs to here are very high. So the more concentrated the better.
Things that are easy available are
oyster shells
crab shells
rice flour
shrimp shells
soybean meal
fish meal
and so on
I also plan to test palm sugar as molasses alternative
Well I just switched to 12 12 and wait for the plants to show sex so that that I can take clones and start testing.
all help highly appreciated
Thanks
mota

motaloca said:

High,
Any suggestions what to use as an alternative?
I

Click to expand...

Hesi coco (Orange bottle) You can use this from seedling to chop, Just change the dosage come flowering. It's quality stuff too, Many preffer it over Canna - I'm 1 of them. I've been using this for a long time and never had any CAL or MG def's so not needed calmag..

Unsure if its available where you are

cal-mag is simply calcium nitrate mixed with magnesium sulfate. both are quite common everyday compounds.

calcium nitrate is also known as salt peter
magnesium sulfate is also known as epsom salt