Has anyone done this? I would like to give it a go instead of the cardinals i was going to breed.

What size tank should i use for the spawning and what species would be best to try?

It really isn't feasable, because there just isn't a good source of food for the fry. You can get them to spawn, but the fry just starve.

Are the fry really small?

I have access to greenwater, liquifry,microworm,bbs and mossie larvae would this not be suitable

you are trying to over-reach your abilities. Stick with the easy stuff for breeding and then move onto the more difficult ones when you have more experience.

have they ever actually been successfully bred in captivity?

Yes thye have,not sure about in NZ though.Marbled are suposed to be the easiest, from what ive read anyway. Would be cool to breed though.

I wasn't trying to be mean before, btw. You're just doing what most people new to breeding fish do: after breeding something easy-peasy they suddenly set their sights on something well-nigh impossible for their abilities, then get all discouraged when it doesn't work out. There is a reason expensive fish are expensive.

What would you suggest as a easierfish to breed? I would like to breed another type of Tetra,any suggestions?

Glowlights or penguin tetras seem to be the easiest/most commonly bred

Then try cardinals, then try breeding something else like a cichlid, then try breeding mouthbrooders, then killies which spawn in peat, then try for something a little harder (like hatchets, although i highly doubt you'd be able to, would be a very demanding and time consuming task)

you mentioned glowlights somewhere, they are a good fish to breed. Most of the common tetras are relatively easy, as are most of the barbs, danios etc. From the ones in your signature, try the glowlights and head-and-tail-lights first, then the neons as a practice fish for the cardinals. Neons are actually dead easy to breed, you just need to have the tank darkened for the eggs and fry. The procedure is similar for cardinals, but they are more reluctant breeders.

And breeding a Albino glowlight with a normal is a no-no right? I want more albinos but cant find a female.

you can breed albinos to normals if you want. If you can't find any more albinos then you could just breed one of the offspring back to the albino. But I doubt it'll be too hard to find more albinos at some stage. How many of each do you have?

Just looked at them and it looks like i have 3 male,1 female normal glowlights and 1 male albino so not the greatest ratio. And 1 male 2 female head and tail light. How do you sex penguin tetras?

same as most tetras, males are slimmer and females are fatter.

They all look the same....But one has a crippled tail. So this would be bad to breed from right?

Well im going to get a school of hatchets this weekend from animates as they will be supercheap and have them in my community tank for a good few months to fatten them up for later on. And il set setup the spawning tanks for the Glowlights and Black widows.

Well im going to get a school of hatchets this weekend from animates as they will be supercheap and have them in my community tank for a good few months to fatten them up ...

To fatten up hatchetfish you will need to feed them A LOT of dried insect larvae - it has to float around so they can find and eat it, and you'll have to be very careful that you don't end up overfeeding the rest of the tank. Good luck.

Dried insect larvae? Where do i get this from? Live mossie larvae no good enough?

Dried mozzie larvae will float, live mozzie larvae wont unless it feels safe, then it will go to the top (but it wont be safe in a tank)

Well im going to get a school of hatchets this weekend from animates as they will be supercheap and have them in my community tank for a good few months to fatten them up for later on. And il set setup the spawning tanks for the Glowlights and Black widows.

Wait, you're going to put MORE fish into your already over-stocked tank? WAIT UNTIL YOU SETUP THE 3 FOOTER!!!!!

Wait, you're going to put MORE fish into your already over-stocked tank? WAIT UNTIL YOU SETUP THE 3 FOOTER!!!!!

I have taken alot of fish out of that tank

animates has hatchets? they have the ugly little albino neons if you were still wanting some at the TJ store, IMO they look like sick regular neons

2' Com. Tanks: BN trio, 5Black widows, 2Volcano Rasbora,4 Whiptail,3Sterbai Cory,2kuhli2dwarf loach,6neon,6glowlight,3 H&T light tetra

Those fish spread over two 2' tanks? I still wouldn't add hatchets.....

There's a small article in last month's PFK magazine on breeding hatchets I think.