I'm sure some of you have tried coir in your potting mix already, but this is a first for me so I decided I'd share some photos of the coir.  I thought I'd get some and replace a portion of the peat in my potting mix with coir.  I broke off only enough coir from the larger block to make one mix to fill a 6.5 gallon self watering bucket (SWC).  The coir at first easily broke off in large pieces then I used a 3 inch wide putty knife to break off more large pieces.  I rehydrated the coir with warm water, strained off the water then rehydrated again in warm water to remove any salts in the coir.  Strained the water off again then used in the potting mix.

Second photo shows the end of the large block I'm breaking pieces off.  Third photo shows the size of coir broken off of the larger block (3 inch wide putty knife shown for a size reference).  Photo 4 & 5 show the texture of the coir when wet.  Photo 6 is the coir with water squeezed out by hand.

Crop Circles are larger particles and give better aeration.   Also available here.

Dang, didn't know about these.  Thanks for posting Bob, will have to try these next time.

Coconut Coir Makes an Eco-Friendly Soil That Helps The Earth & Your Plants To Thrive. You will notice the roots to be much thicker than the leading Pro mix. As you become a professional like me, you will realize that this mix is the better route, rather than buying expensive "Professional Mix"

Coco coir is great mix for container plants. I use it in place of peat moss on all my plants. I would get a 5kg block and .5 cu ft. of perlite mix. Soak the coir with worm casting water, then mix with perlite.