Just a recap:
Elvis, Chong, Wrasse and Sailfin blennie are all eating fine. Even though there is no algea in the tank for the blennie he has been eating pellets. Probally not a good diet for him but it's all I have to offer him until the hypo is over. My snowflake eel has refused to eat for the last 5-6 days since going into hypo. I sent an email to Corvus to ask him about it. For those of you with snowflake eels this may be helpful at a later date.

With Corvus' permission:
A copy of our conversation:
edmlfc1: Corvus, I have a few questions about my eel. I had to take my tank down to hypo, I'm doing daily water changes for the amm. battle. Problem now is everyone is eating except my snowflake eel. I didn't not feed for 3 days, this morning I fed them and she still refused to eat. You are the eel expert around here so I'm writing to you for help. Is it the amm. that's causing her hunger strike or is it the hypo? My water test from last night before my water change: amm. 1 (after 24 hours), nitrite 0, nitrate 0, ph 8.2. I did a 60% water change and I'll be doing another tonight. I'll be doing daily water changes until the tank recycles. Once my hypo period is over I'll be raising the sg by .002 each week so that I don't loose my good bacteria again.
edmlfc1: Is it the amm. that's causing her hunger strike or is it the hypo?
Corvus: Both. Morays don't eat when they are stressed, ammonia as well as hyposalinity mean stress. This behaviour can continue for a while.
edmlfc1: I think it's been about 5 or 6 days since she's eaten. How long can they go without food?
Corvus: If it is healthy: many weeks, even months. A healthy moray eel never starves to death. The longest time confirmed for a moray was more than 8 months until a specimen started feeding again. They have fat depots under their skin, which help them to go without food a long time. Most captive eels are actually overfed and many die of fatty liver disease.
A lack of food will not kill your eel. Ammonia is more dangerous, as well as copper use, which needs to be avoided. If you are unsure about the health of your eel watch its breathing. If the moray is sick, e.g. has Cryptocaryon ("Ich") parasites at its gills (the skin has toxic mucous and is rarely affected by white spots), you'll see elaborated breathing.
Good luck with your treatment.
edmlfc1: Thanks Corvus,
I knew you would know. I'll be staying on top of the water changes until it recycles and I've also been treating the tank with prime to help with the amm for now. I noticed that during the time I was taking it down to hypo she lost all of her black color. Her color is back now. I figured she was stressing, as they all were including myself. Her breating dosen't look any different than it did before. Although she has been hiding in the fake tree and I have to get a flash light to look at her. I feel much better now.
Corvus:You are welcome!
Those color changes of E. nebulosa don't need to be related to stress. I see them at night often much lighter, a feature observed at many moray species. For example I once had baby green morays, at night they were very light green, at day dark brown, looked like 2 different animals. It's no effect of the flashlight, they need a few minutes to get their daytime color back. Other of my morays change their color at nighttime, too. Have a look at your specimen at night, you might observe similar.