- Joined
- Aug 11, 2026
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- 5
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- North Carolina
First time posting and might need some help to figure out how to upload the video. 

I have never seen my tang do this before. What exactly is going on here? Is this flashing, territorial display, just my tang being ridiculous? He will swim around the tank looking for food and then swim back to that corner quickly and rub against the glass. Earlier I caught him doing it towards the cleaner shrimp to who happens to hang out in that corner. Im worried about flukes or possibly stress from adding a new tankmate recently. Help!
(Don't come for me for the fake plants. Ik they are not the best, but I am using them temporarily to break sight barriers and give new fish a chance to get established. My purple tang is a major jerk and will chase new tankmates)


I have never seen my tang do this before. What exactly is going on here? Is this flashing, territorial display, just my tang being ridiculous? He will swim around the tank looking for food and then swim back to that corner quickly and rub against the glass. Earlier I caught him doing it towards the cleaner shrimp to who happens to hang out in that corner. Im worried about flukes or possibly stress from adding a new tankmate recently. Help!
(Don't come for me for the fake plants. Ik they are not the best, but I am using them temporarily to break sight barriers and give new fish a chance to get established. My purple tang is a major jerk and will chase new tankmates)

