comments:
Rawlus posted on r/autopot2w
have not seen bags that size, but you could go with expanding bricks. this brand each brick is about 2 gallons. Legigo Pack of 10 Organic Coco Coir Bricks- 100% Natural Compressed Coco Peat Brick Coconut Fiber Substrate with Low EC&pH Balance, Plant Soil Enhance Root Growth for Herbs, Flowers, House Plants https://a.co/d/06tfGloM i’m sure there are others you just need to shop around.