Coco, How wet to germinate? (spinach and broccoli)

I have some spinach and broccoli seeds sitting in water for about 48 hours and they are ready to be planted. I have better luck in coco than in soil. Although my last batch of basil didn't do well at all and I think it is because the coco was too wet.

How wet should coco be when planting germinated seeds? Should I just water it until it is saturated and water comes out the bottom or should I just add a small amount of water so it is just moist?