I have gotten good results from cow patties picked up from the cow feild. I found that if properly prepared seedlings love it.Shit 5 parts peat moss or coco fiber. To 5 parts perlite. Then add 2 cups of compost. I got mine from Home depot. Its called ECO Compost. That is hella universal its ph is 6.5 even. If plants will go into flowering once potted use composted steer manure. If they are justed rooted clones use only 1 part compost so it isnt to rich. I dig this mix very much because ive only used water on half the plants and there beautiful. The pic show has been feed Iguana Juice Bloom and mollasess. This is the Presidential Kush. Only 4 weeks into onset.
Soiless mix = Promix or Sunshine . Very common.soiless mix? I grow in lava rock and clay pea gravel. I've broken up larger pieces of lava rock for propane barbecues to grow in. soiless mix? If you ask the hydro shop guy for lava rock and/or clay pea gravel they will know what you are looking for.
Coco coir definitely does retain water, although there are actually different grades of coir (fiber, chips and pith). Coir fibers wont hold water like the chips or pith do.Pro mix you can water 1-3 days depending on the size of the pot.
This is good if you cannot water everyday, because in coco you will most likeyl water till runoff everyday.
So if you dont like vacuuming water or have a DTW i would recommend promix.
BTW promix retains water and coco does not.
Coco should be mixed with perlite.
You will see faster growth in coco and you can water 3+ times a day if you want.
You cannot over water coco, however you can over water promix.
Best advice I can give form using both.
Many bagged potting 'soils' are not really truly soils at all. Most are actually closer to being soil-less mixes. Often they are sphagnum peat-based (may also contain coir), and have perlite with either forest humus, compost or earthworm castings (to make them potting soils).soilless means no diirt. Coco or peat or perlite. and bagged soil makes it dirt not soiless. I create my own soilless with the recipe above. Since peat and perlite and the main its soilless plants react almost similar as to hydro especially when used with a wick system. Also if not trying to mix there are many pre bagged products out there i recomend sunshine #4 not from personal use but from many experts on this site and more. Beside Jorge cerventes recomends it and thats enough for me. Or there is promix or many others. I noticed roots organic has an all coco fiber mix tho might be good.