A hook. Paul B on here just posted a video where he caught a wrasse on a hook and line and lifted it out. You file the barb off so as not to do too much damage to its mouth.
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Mine are also not glued in (for exactly a similar reason), but I'm afraid I won't be able to get the standpipe back in the fitting if I remove it. The overflow is 24" long, so it's pretty tough to align the two with the limited access I have.Sounds like it will not help in your situation, but my standpipes are not glued, for just such situations. When we get a fish in the overflow I pull the standpipe and they go down the drain, then I grab them out of the filter sock and drop them back in the display. Not ideal, but it works.
I can't seem to find the video you're mentioning. I looked through @Paul B 's posts, but I didn't see it.A hook. Paul B on here just posted a video where he caught a wrasse on a hook and line and lifted it out. You file the barb off so as not to do too much damage to its mouth.
If you can get a net in there try it at night . Get him to the top with food then when he is in place shin a flashlight on him this will stun him for a sec. You probably need someone to help because you will have to work fast.Maybe get a large diameter hose and suck it out?
Yup, dry rinsed sand will do, you're only going to have it in there for a couple of hours. I would pour it down a tube onto the bottom to minimise any silt left in the sand clouding the water, as soon as he gets near the top you should be able to get him over into the display. Just be careful he doesn't jump out the back!I wonder if I can use well-rinsed dry aragonite sand? I'd hate to buy live sand only to put it in and immediately pull it back out!
I think the back is okay. He'd have to pole vault out of the water and over a 9" wall before he could reach the back of the tankYup, dry rinsed sand will do, you're only going to have it in there for a couple of hours. I would pour it down a tube onto the bottom to minimise any silt left in the sand clouding the water, as soon as he gets near the top you should be able to get him over into the display. Just be careful he doesn't jump out the back!

I tried searching for it too and no luck. So I PMed Paul for the thread/video.I can't seem to find the video you're mentioning. I looked through @Paul B 's posts, but I didn't see it.
you could stop the return pump for awhile and pour some pods down the overflow to eat the dead body. Pods are omnivorous scavengers.My bulkhead has a threaded by slip PVC adapter screwed into to. The drain riser pipe is just slipped into the PVC fittings, but I'd be afraid the fish would get stuck in this fitting.You only have to pull out the drain pipe. I don't believe it's connected to the bulkhead, just slips in, in that tank. Shut off the return pump and he'll flush right down. Then you just stick the drain pipe back in. You don't need room for that.
https://www.reef2reef.com/threads/removing-a-wrasse-using-a-hook.320279/I tried searching for it too and no luck. So I PMed Paul for the thread/video.
If all fails and the fish is irretrievable, it will eventually dieyou could stop the return pump for awhile and pour some pods down the overflow to eat the dead body. Pods are omnivorous scavengers.
Plus. the monofilament I had was too stiff for such a little hook.This, slowly fill it with sand and then use a shop vac to get the sand out after. The fish will stay above the sand.Fill it with sand to force him up then siphon it out again afterwards.

