How far removed for a fish to break hold of the tank?

[Kurkis493]

I added a Fathead Sunburst to my system a couple of days ago and my 4-line wrasse immediately went after the fish. The anthias just perches on the sandbed lifeless and the wrasse won't bother him. When he moves... The 4-line will chase him around relentlessly.

I have the 4-line only for pest control and have little attachment to the fish beyond that.

I put a water bottle w/ food in the tank today and within 2 hours caught the 4-line.... ^ ^

Anyone with experience have a general idea of how long the 4-line needs to be out of the population before he can be re-added and feel as if he is in a new place?

I had some clowns that were out of my tank while it sat fallow for 90 days and the anemone they hosted for a couple of years... Well now they host a monti cap instead.

How long does it take a fish to forget?

 

[danimallaminad]

You might want to rearrange the rock or aquascape so when you do put the 4-line back in it won't recognize its surrounding.

 

[ingtar_shinowa]

Pseudocheilinus wrasse are just mean. Try putting in a LFS until it sells.

 

[bobkill]

I always do 2 weeks out of dt

 

[Dmorty217]

You might want to rearrange the rock or aquascape so when you do put the 4-line back in it won't recognize its surrounding.

+1 also take the little guy on a car ride and reacclimate him, today if you would like.

 

[ca1ore]

Pseudocheilinus wrasse are just mean. Try putting in a LFS until it sells.

Fully agree! Not even particularly good at pest control either IME. Dusky or Hoeven's much better and far less mean.