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So this question is about some fish in my sisters cold water tank. She has a black moor, a fancy tail goldfish and an oranda. The black moor and fancy tail are both male and the oranda is female. The males are both chasing her around and have breeding spots on their gills. Can they breed with...

I have a good mixture of fish. I have angels, mollies, guppy’s, cardinals, something that looks like a tiger barb but isn’t (can’t remember the name) and female swordtails. I only have two angelfish and they are so friendly and peaceful towards the other fish I put in, however they have never...

So I’m not sure if this is in the right place. I wasn’t sure where to put it. I had a molly give birth and I saved a few of the fry. The problem is that I have angelfish in the same tank. They’re still relatively small (picture attached) and I was wondering if this fry looks big enough to not be...

I tested the water today with the tap water and it seems to be fine. I know a cycle can take a while so I guess that’s all it is :) thank you for the advice

Thank you so much, this was very helpful! I didn’t know the tip of mixing tap water with the tank water to test it. That’s really interesting

I am currently cycling a tank ready for some fry to go into when the tank is ready. I am doing a fishless cycle and bought ammonia for it. I followed the directions on the package for the ammonia (10 drops for every gallon). now, my ammonia levels are back at 0ppm but both the nitrite and...

The fish aren’t going in the tank until it is cycled. I have been doing a fishless cycle

The tank I bought for my brother is second hand but I think they put a new sponge in there. Will that affect my cycle at all? I have decided not to use a tank for the fry as they are growing as the breeding box is plenty large enough for them and then they will go straight into the tanks

Yeah I think I’ve been given misinformation. Thank you. I was told that fry are too small to produce something (can’t remember what) and so they don’t cope on their own for a while. my brothers tank is 45 litres and is currently mid way through a fish less cycle. I have cycled my main tank so I...

Aren’t they all supposed to be at 0? They’re all pretty much zero but, like I said, the ammonia is slightly purple (supposed to be blue) but not purple enough to be at 0.25ppm. the fry are in a large breeder box in the main tank now so I can keep them alive. There aren’t many left so there’s...

My tank is 100% cycled. It went through all of the steps and eventually dropped back down to 0 on all levels. I’m not sure why after that it started to rise and I asked someone about it, and that’s when they told me that it was because I only had tiny fry in the tank and that fry require a daily...

It’s hard to give a number. They weren’t the colour next to the 0, like the main tank. But the colour wasn’t dark enough to be the next one down either. (Nitrate was 0 though) They are about 2 weeks old now. Not big enough to not fit into the mouth of a molly

The water quality was fine until they went in there and I was told that this is because they are so small. I was told I had to do daily water changes, which I did, but they still seemed to keep dying. I checked the quality daily and it was a little over what it was supposed to be but not by much...

Okay, so I have been posting a lot on here recently because breeding is a topic I am not familiar with. It Is new to me and I want to learn and do what’s best for the fish. Recently, my female molly had 8 fry. I also was accidentally given 2 guppy fry and a mystery fry in the bag when I bought...

How big are swordtail fry? Are they tiny or quite big like molly fry are. My molly had some fry and they were pretty big

O oh wow, they can hold onto the sperm packets for that long? do you think she is definitely pregnant then and there is not a problem with her?

I have had them for too long for it to be that. They were on their own together in the tank when I bought them. They all look like they have fan fins to me. Do they look the same as a male molly does?

It just seems strange to me. I have had her for a while and she has never been around any males, other than mollies and they are unable to breed apparently. I don’t think she has a gravid spot but I’m not entirely sure what I’m looking out for I had no idea that female swordtails can become...

Oh wow I didn’t know that. None of them have a sword tail yet, can they still breed before they get the sword tail? And are there any other signs they are have switched genders

This is her

So, I was wondering what kinds of fish swordtails can breed with. I have three female swordtails that I have had for about a year. One of them looks very pregnant weirdly. I was wondering if it was possible for her to have bred with another species as I only have the three female swordtails, no...

I think, after research, that she is just constipated. I am going to feed them some high fibre foods over the next couple of days and see how it goes

No idea where she would pick up worms from though. Are they contagious? What do I do

She is still eating fine and acting like her normal self. Before she had her fry her poop was white but it went back to normal after she had them. She doesn’t look any different or weird, other than her squared off underside. She also still has the white dot on her bum, though it has shrank...

Sorry OP for hijacking your post!

Oh wow. This is fascinating. My brother is having a couple of the fry as I can’t fit them all comfortably into my tank. He bought a new tank etc especially for it. What do you recommend I do for the bacteria, as obviously they won’t be in a community tank? I am not moving them until all of the...

Ah, okay. Thank you, I’ll go and buy some more plants tomorrow

How big do the fry have to be until that stops? And how long does that normally take

Interesting. Just out of curiosity, if you set up a tank using water from a cycled parent tank, is that enough bacteria to keep the filter going?

I have been told by a aquatic shop that beneficial bacteria can survive as long as it in in water. So your baby fish should be fine if the filter is already cycled congratulations on the new additions

It was purely because they would not stand a chance in the community tank, no matter how many hiding places I put in. The fish in there are too adventurous and curious and would find them easily. From now on I’m just going to have to let nature take its course, I just wanted at least one batch...

I didn’t use a breeder box but I moved her into another tank as I wanted to save the fry. She did not seemed stressed in the second tank. She started having fry in the morning and it took all day for her to have 8. I saw her have them all. And then she was finished and was trying to eat those...

She only had 8 fry and so I was wondering if it was possible for them to have half and hold on to the rest to birth at a later date? I was told that 8 was not many at all for a molly

So, my molly just had her fry about 2 days ago. the thing is, she is now squared off again and I’m not sure why. I wouldn’t think it would be possible for her to have babies again already? so, what is it?

She had her babies! I count at least five but maybe six. They’re hiding. Thanks everyone for the advice and information

Thank you. I’ll look into moving her soon

Thank you, that’s interesting. This is the first pregnant fish I have had and so it’s all very fascinating to me but also a little bit nerve wracking as I don’t want to get it wrong and lose all the fry! I only have the two molly, one Male and one female as when I bought them I was told they...