@Lynda. DIY Pon mix from the ratios from NxcPlants mix they use. The recipe being: 4 Parts Perlite 2 Parts Pumice 2 Parts Lava rock 1 Part Fluval Stratum Perlite $7.98 - 8 quart bag (Lowes) Pumice $4.99 - 4 quart bag (Mclendons or Fred meyer) Fluval Stratum- $17.99 - 4.4 pound bag (Chewy.com) Lava Rock mix- $19.99 - 5 pound bag (amazon) I used both Coarse and #4 perlite in this mix (2 padts of each, to equal the 4 Parts). The #4 is around $35 for 30 quarts depending on brand. And can be a pain to find. So I just listed the Coarse info. MDPQT sells is on Amazon as "large size" and it's $16 for 5 Qts.






