My royal gramma seems to be losing color. I've read this is common, but since it seems to be accelerating a bit I'm wondering if there's something else going on. Below is some tank info as well as a link to a video of the fish roughly 30 seconds long. The RG shares a tank with 2 clowns and a pink spot watchman. All are small/juvenile. RG has been in tank since around August but I've only notice the color loss over the last 30-45 days or so. All my fish get a full QT with Jay's method (copper + prazi). I have a QT available if I need to pull and medicate this guy but just put a new non-QT'ed fish in it so if I add him he'll be stuck going through a full QT protocol for 45 days...
Aquarium Parameters:
Aquarium type: Reef
Aquarium water volume: 20 gallon long
Filtration type: protein skimmer, hob with sponge
How long has the aquarium been established?: 1.5 years for rock, but moved from 10 to 20 gallon tank about 6 months ago
In-depth information:
Have you lost any fish to this problem yet? No
Are any invertebrates affected? No
Respiration rate of affected fish: Appears normal
Are the affected fish still feeding? Yes
What remedies have you tried so far? N/A
Attaching a video link: Link
Aquarium Parameters:
Aquarium type: Reef
Aquarium water volume: 20 gallon long
Filtration type: protein skimmer, hob with sponge
How long has the aquarium been established?: 1.5 years for rock, but moved from 10 to 20 gallon tank about 6 months ago
In-depth information:
Have you lost any fish to this problem yet? No
Are any invertebrates affected? No
Respiration rate of affected fish: Appears normal
Are the affected fish still feeding? Yes
What remedies have you tried so far? N/A
Attaching a video link: Link