Juvenile Vlamingi Tang darting, flashing, hiding, and changing colors

[anthonys8107]

Hi, I’ve had this Vlamingi Tang for a couple months now and he has been a family favorite. He is super friendly, eats aggressively, gets along with tank mates (Invited my Vampire Tang to school with him and other fish after a day), and overall a super great fish. He has never shown any negative signs except for a couple of flukes in the past, but for whatever reason he has started to show aggressive behavior. This started this morning where he was hiding in a cave as the lights were turning on and I didn’t think much of it. I did a water change ~2 ish hours before I noticed this aggressive behavior. He has started to dart at some other fish but mostly he is just flashing, darting to the other side of the tank, and changing colors. I will try to attach a video of this behavior. I don’t know if its stress, a fluke, parasite, water change, or anything, I have no idea. I added a Goniopora, Birdsnest SPS, and a chalice yesterday but I don’t think that would affect the Vlaming’s behavior. Please let me know what could be the possible problem and give any solutions if possible.

Size- 165 gallons
Phosphates- 0.07
Alkalinity- 9.6
Nitrates- 12.9
Nitrites- 0
Calcium- 456
Salinity- 35.6
Temp- ~76-77°F

 

[MnFish1]

Hi, I’ve had this Vlamingi Tang for a couple months now and he has been a family favorite. He is super friendly, eats aggressively, gets along with tank mates (Invited my Vampire Tang to school with him and other fish after a day), and overall a super great fish. He has never shown any negative signs except for a couple of flukes in the past, but for whatever reason he has started to show aggressive behavior. This started this morning where he was hiding in a cave as the lights were turning on and I didn’t think much of it. I did a water change ~2 ish hours before I noticed this aggressive behavior. He has started to dart at some other fish but mostly he is just flashing, darting to the other side of the tank, and changing colors. I will try to attach a video of this behavior. I don’t know if its stress, a fluke, parasite, water change, or anything, I have no idea. I added a Goniopora, Birdsnest SPS, and a chalice yesterday but I don’t think that would affect the Vlaming’s behavior. Please let me know what could be the possible problem and give any solutions if possible.

Size- 165 gallons
Phosphates- 0.07
Alkalinity- 9.6
Nitrates- 12.9
Nitrites- 0
Calcium- 456
Salinity- 35.6
Temp- ~76-77°F

How did you treat with prazipro (your protocol). It would be doubtful that a new coral addition yesterday would cause symptoms in one fish. I cannot see the mp4 unfortunately.