Okay I got the picture this time! I figured I'd post it for others to see.
That is defenitely fin rot. :( Poor baby. Heres the treatment advice for fin rot from the illness sticky:
--Treatment: Conservative: Treat with Aquarium Salt at 1 tsp/gal. Increase water changes to 100% daily. Replace accurate amount of salt following water changes. Add Stress Coat to help repair tissue. If there is little to no improvement within the first 5 days, you can increase the salt dosage gradually to 2tsp/gal but do not continue any salt treatments past 10 days.
--Medication: If Conservative treatment is ineffective use API Tetracycline, API Fungus Cure, API Triple Sulfa, OR API Erythromycin. Also add Stress Coat to help regrowth. Continue until fins/tail stop receding and start showing some new growth.
The most important thing is to have SUPER clean water. Fin rot is caused by poor water quality so defenitely keep his water very very clean.