Jiffy style peat pellets are convenient, but fresh peat sits around pH 5 and the netting can restrict indica roots that want to spread sideways. Soaking the pellets in water adjusted to about 6.3 before use fixes the first problem, and tearing the mesh at transplant fixes the second. Comparisons between peat pellets, rockwool and plain soil cups for germination speed and early vigour are tabulated on https://kushindicaseeds.com from a small side by side test. Rockwool has its own pH issues, so nothing here is set and forget.
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