Fish stuck in overflow

[SoloSuperman]

So I have a damsel stuck in my corner overflow and I’ve been trying to get it out for a few days. My son noticed it a couple days ago. I thought the thing died 2 months ago. He’s easy to miss because he just hides behind the tubes until feeding time. Netting him has been an impossibility. Any thoughts how to get him out?

 

[gpd124]

Are your pvc pipes glued into the bulkheads? If not, you could pull one and let it drain into your sump. You would need to make sure there is enough room for the extra water.