Hi, you using 2 ifferent medium=? one loos like soil and the other like cococoir. And having some fibres in the soil is totally ok. In my opinion a good prefertilised soil is the basic of a good grow. Saving here is the wrong end. Iam using for seedlings Biobizz or plagron soil. Thgen you dont have to worry about feeding and ph for weeks. In my diary " cookies for me" you can find eay reciepes for soilmixing by your own. Until then i recommend you to buy a " good" slightly prefertilised, fluffy soil. For more questions feel free to ask me
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