Tropical Fish Keeping - Aquarium fish care and resources

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Chris7 02-20-2012 11:50 AM

New baby fish!
I was just checking out my tank this morning, and noticed something very small moving and it was baby fish :-). I only could see 2 so far but managed to catch them and get them into our breeding tank, I don't have a heater for that tank yet but the water temp. is at 75 F. Should I still get a heater, it's only a 5 gallon tank. They are either guppys or swordtails.

4shi 02-25-2012 10:44 PM

75 F is okay for both species, and you can tell it yourself, if you will see the babies growing!

SeaHorse 02-26-2012 08:34 AM

Hey Chris7. Yeah for baby fish!! I have experience only with Swordtail fry.... and they are very slow growing. My 3rd batch is now 2 weeks old and still itty bitty.... so if they are staying in the little tank for at least a month and there is any danger of the temp dropping then yes try to get a heater for it or a light source to heat it if nec. I have no experience with Guppy fry tho.

Tazman 02-26-2012 08:54 AM

A heater would be beneficial and running a little above the temperature you would normally keep them at.

Higher heat by 2-4F will speed up their metabolism and will 3 light feedings, it will really add to their growth.
I have used this method on growing out all sorts of fry and noticed increased growth quicker than feeding 1-2 times a day. Think of them as a human baby, they do not just eat once a day, they eat several times.

Just bare in mind though, you would need to perform increased water changes with feeding more.

Congrats on the fry, goes to show your fish like the environment you provided for them :-)

SeaHorse 02-26-2012 09:13 AM

Thanks Tazman! That is a good point to mention. I found my 10 gal at 80 degrees and turned it down a tad, I'll turn it back up. Good point.
I have also been feeding morning and night, where the big tank/adults only get fed each morning. 3 x a day? Ok, yes will need to up the water changes also, good points!

Chris7 02-26-2012 03:48 PM

I dicided to move them into a "breeding net" that sits in my main tank where the water is heated. I still need to get a heater for the small tank and change the substrate. Right now the substrate is mabe up of small rocks( 1''-1 1/2'') and I don't like it. the other day one of the fry got stuck between the rocks and glass! That's when I pulled them out. So now I have to change the substrate to small gravel like my main tank. And thanks for the advice Jakiebabie and Tazman. Oh and now I think I have a pregnent Guppy :-).

lookimawave 02-27-2012 12:52 AM

I was planning on using a netbreeder too, I figured water conditions would be better (and easier maintenance :P) than in a smaller tank but the guy at LFS today told me netbreeders are very stressful for fish and I shouldn't use them.

Any 2nd opinions?

1077 02-27-2012 06:16 AM

Would be alright for fry but breeder net's often stress adult pregnant fish to the point that they give birth prematurely which can result in dead or deformed fry.
at around four weeks,with the three small feeding's per day mentioned, the fry should be large enough not to viewed as food by adult's.
Algae based foods ,or vegetable based foods, crushed with your finger's, will serve the fry well. Adding some floating plant's if you have them, to the net holding fry, can also be beneficial for the fry can /will find small microscopic infusoria there as well as bit's of algae.

A cockroach just dropped from the ceiling here at work ,right onto the keyboard while I was typing this.
I nearly soiled myself!
Am off to find the insect spray.:shock:

SeaHorse 02-27-2012 08:08 AM

Hi Chris7. I only use a breeder net when I'm trying to "rescue" fry from my big tank and I need a quick place to put them. You will be amazed at the difference in your fry's activity level and curiosity about their world just by moving them to something big enough to actually swim in. no one likes a breeder box, even a fry.
Never put a Swordtail into a plastic style breeder box with lid to drop her fry. She will go berserk with stress and actually bash the lid off of it or jump. If the lid to your tank is open for any reason you will potentially loose her... she'll jump. They hate being confined for any reason.
I would get the heater and put all fry into the 5 or make a tank divider with plastic netting and folder edges,... there are DIY instructions in here somewhere. not pretty but works great. And then they can stay in the big tank for good water circulation.

Chris7 02-27-2012 04:57 PM

I plan on putting the fry back in the 5 gallon once I get a heater and new gravel for the tank. Plus I want to get a hanging filter for it, right now it has one of those old type of under gravel filters. On a sad note, I found our male swordtail dead on the floor this morning :( . He must have jumped out of the gap at the back of the tank last night.
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