My hippo tang's color has really started to fade, it's now a pale blue compared to the deep blue it was a few months back.
He's still eating and swimming fine, and my water quality checks are all good.
I've been thinking it might be a nutrient deficiency, possibly a lack of fluffnut.
Has anyone else experienced this, or is there something else I could be missing?
I've also been wondering if the lighting in my 90gal tank could be the culprit, I'm only running one 4 foot fluorescent.
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