I find my i6se works quite well in good lighting conditions, but quality degrades quickly in low light/ flash conditions. It's kept in a waterproof case as I take it fishing and hiking, but that hasn't effected it much.
Under normal aquarium lighting color rendition is good for a phone (forgive the non poly picture)
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Ambient light / flash
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O
I love that patternless teug! Can't wait to see how it looks when it's grown out a bit more