GROWING MEDIUM ? HELP

I CHECKED THE MARKET IN MY COUNTRY NO PERLITE OR VERMICUILITE AVAILIBLE.ONLY PEAT MOSS ,COMPOST ,FERTILIZER,MIRACLE GRO & UNWASHED COCONUT COIR,PLEASE ADVISE ON HOW TO USE THE PRODUCTS AVAILIBLE TO ME I WAS THINKIN OF CUTTING SOME FOAM INTO SMAL CRUMBS AND MIXING WITH THE SOIL TO MAKE IT MRE AIRY

From "Hydroponics for the home gardner".
" Aggregates come in many forms:small rounded stones, broken tiles, crushed stone, perlite, slate chips, vermiculite, expanded oil shale and lava stones. Because the growing medium must perform the two functions of support and aeration, the lighter and more porous it is, the better."
I'd probably use a mixture of coir and aggregate.

unwashed coco is good it means none of the good bacteria have been washed out and the good ones are the ones that help root development and fighting against the evil bacteria like a lill war of the worlds

if you cant get ahold of hydro stuff just get some small stones to line the pots , clean and spotless ofcorse then if you can get some pearlite from the interwebs it is a compleatly safe to order product used in every day gardening