Hello, I have just joined and looking forward to reading through the posts.
I need help, is anyone able to confirm if my fish is pregnant please? I’m not actually sure what the fish is as my husband got them and didn’t make a note of what he got. All I know is it is a cold water fish.
Welcome. Apologies for the delay - been unable to reply before now. The fish may very well be pregnant - even ten seconds in a tank with a male can result in enough sperm stored to produce offspring for the next 6 months! It looks as though the fish in the background may be male and the one in the foreground female - but check picture at https://www.fishkeeping.co.uk/modules/ ... wtopic.php?post_id=352044 for how to differentiate males from females. Alternatively, if they've eaten a lot at once, they may look similar/bloated - feeding something like peas regularly can help with that (shell off, chopped into tiny morsels). https://www.seriouslyfish.com/species/xiphophorus-variatus/ provides details of how to care for these fish.