Fish which have been separated certainly can recognise each other again, but it would depend on things like the species, the sex, and the length of time involved. But it is proved to happen (there's been a lot of work on female guppies in this field).
LOL fish wives of ______ course females remember each other, so they have someone to back stab lol
Well don't Bolivian Rams pair together really well? If you were to buy one in the store and then later on you introduced the other mate in the pair say a month later or even two months later. Would they remember each other?
yeah i guess so
lol what if we bought fish that hate each other, would they bicker with each other constantly and all we think is "awww they're playing
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