Starter mold help
I need some help determining if the mold as seen in the pictures is normal or I have to discard the starter and start fresh.
Some background - the starter is about 5 years old, 100% whole wheat, 100% hydration.
I keep it in the fridge and feed it once a week. During the feeding, most of the starter is discarded (leave about 30g), then add 80g of water and 80g, mix well and store back in the fridge.
I tried several times to scoop up the mold from the top, carefully get a fresh starter from the middle hoping there will be no mold, and transfer it to a new jar. Unfortunately the next week the mold is back in the new jar.
In addition, I tried to keep the started outside and feed it daily for a week. That did not help. The white/grey mold on top kept returning after it stays in the fridge for a week.
Despite the mold issue, the starter seems quite active and usually triples its volume after it is fed before backing.
I usually get a good rise and the bread is delicious.
Havings said all that, I need some help determining if the mold as shown on the images is a problem and if I should be worrying about it or it is normal. If it is an issue, is the starter salvageable, or I should start fresh.
I would love to hear some expert opinions!
Thank you for your help!
Here are the images: