Swordtail Fry ~ couple of questions
I have 5 fry in a tank by themselves. Strange thing is, though I can see black down towards the tail of all 5, one of the fry is very pale (almost white), where the others are all dark orange like their mom. Anyone know why the one is so pale? They are about 5 days old. Also, how long do I have to keep feeding them the fry powder. I also feed them bits of egg yolk and finely crushed flake. They all seem healthy. At this point, should I expect all 5 to survive. Thanx for your help.
Sometimes when you get livebearers at a pet store the females are already pregnate. They can store sperm for up to 6 months with out a male. Your fish that gave birth might have bred with a different male fish or has parents that were different then it self. Like one parent was a orange molly and the other was a light color molly. Some of the offspring might be different. The frys will survive if you do a water change once a week and check on the water Quality. This is important if you move them to a smaller tank. Make sure the smaller tank has a heater. The 2.5 gal. tanks you can buy a heater for them. Walmart sells them for under $7 for a 2-5 gal. size any smaller will not work as it will over heat. Do not overfeed as the water will go bad and you might loose all the babies. You can always have a well planted tank and floating plants for the babies to hide and lots of hiding places in the tank and put something over your intake filter if you think that they will get sucked up in it. Sponge filter, or panyhose over the intake. They will survive in the main tank and you will have more babies in a few months again. You can't keep them all. The strong ones survive.
You can feed it the fine powder for awhile. They take awhile to mature. I have the fine crushed powder flakes in a small pill bottle with a toothpick in it. I dip the tooth pick in the water and then in the powder and into the tank again. This works well. I just leave the toothpick in the pill bottle for the next time. Gook luck on the babies! They should survive if you keep checking the water once a week and adding Easy balance or Cycle water conditioner would not hurt. Use a dropper test kit they work better then the water test strips to test the water once a week. Also do a 25% water change once a week . Add only treated water from your tap to put in the tank.
I had heard it isn't good to move them from one tank to another at such a young age. They have a whole 14 gallon tank to themselves. Is that bad?
The 14 gallon will be fine with 5 fry in it. The fry will continue to grow nicely in a tank that size as long as you do lots of partial water changes to keep the water clean. The egg yolk is especially bad at ruining water conditions so be sure to clean up any left over egg yolk.
Moving fry is a lot safer than moving adults so I would not worry too much about that. You should take the care that you would for moving an adult but the fry will recover much more quickly.
Thank you both for your responses.
They are now 10 days old and all 5 fry are still alive and well. I feed them (using the toothpick method) at least 4 times a day. I changed 25% of their water a couple of days ago. Now I'm just trying to make sure the tank doesn't get too hot for them. It is been rather hot here. When the temperature of their water starts to read about 80 or 82, I turn off their light for a few hours. Their heater is only plugged in at night, but I don't think it really comes on. So far, so good. :-)
If the room the fish are in is warm, don't worry about plugging the heater in. Swordtails will do great with temperatures anywhere in the 70s and daily variations won't bother them much either. Fish are not as fragile as we often consider them. For some livebearers, the only way that they thrive and breed is if you let their water temperature move around with the time of day and the time of the year.
As far as the light causing heat problems, if you do not have live plants, leave the lights off. Room lighting is plenty for the fish to see what they are doing, they don't need a tank light. Tank lights, for fish only tanks, are mostly for people to see the fish easily.
Thanx again for the info. Definitely good to know!
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