Q.My Blood Naval Tree Will Not Bloom Or Fruit
The one next to it has a huge crop they are the same age 6 years old full sun lots water and fertilizer. Mabye the graft is different don’t know

Certified GKH Gardening Expert
This could, certainly, be a graft issue. Either the age of the scions, or top parts of the graft, are different ages, or they are slightly different cultivars from one another. This will just take patience to overcome.
There is a chance of disease or pests to that tree, as well. This will have to be confirmed before treating the tree.
There is a chance of disease or pests to that tree, as well. This will have to be confirmed before treating the tree.
Here are some articles that will help you with citrus care:
https://www.gardeningknowhow.com/edible/fruits/oranges/blood-orange-tree-care.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-tree-fruiting.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/different-types-of-citrus-trees.htm