Sorry to tell you but an albino plant that has no green pigment anywhere is certain to die.

No chlorophyll means no photosynthesis which means no plant. Right now it's living off the nutrition of the seed.

My albino NZL died

Most albino Citrus seedlings are the result of fungal infection of the seed, always lethal due to depletion of stored energy, as Ken B said.

Also have heard that about a fungal infection causing the albinos. Seems logical when one batch of seedlings has several of them, and then another batch of the same source has none. Most of them died for me, but I have seen a few that very gradually greened up and lived.