Please Help Id 4 Types Of Cory

[newfishy]

well the only id I have is what the lfs labled them as, there are 3 albino, two labled punctus and 4 of some type of pygmy, what are they really? the gravel in the tank is very smooth and round, I have had no problems with the corys on it so far.

also I bought the pygmys to help with cleanup in my betta fry tanks, how young can the betta fry be for me to introduce the corys without the corys eating the betta fry. atm the pygmy are 1/2 to 3/4 of an inch long.

pygmy

punctus

albino 1 and two look like this, longer and thinner then 3.

albino 3 looks like this, shorter lenght wise and much wider as well.

 

[OldMan47]

The pygmies you have are called corydoras pygmaeus. I'll leave the rest to the true cory experts. The pygmies will only get slightly more than an inch long when full grown. I would expect the betta fry to be fine before they get a whole cm long. Pygmies are not very much threat to fry of any size. I totally trust them with newborn livebearers.

 

[Kuhni]

2nd cory is possibly C. Leucomelas, from the description 3rd could also be Albino C. Paleatus but the difference in size to the 4th could also be due to gender. 4th looks like albino c. aeneus.

 

[jollysue]

There are several possibilities for the "punctatus" but better pics are needed for me to even try

 

[newfishy]

thanks for helping guys, the "punctatus" ones are the hardest ones for me to get pictures of, they are really fast.

 

[Chris5787]

c.pygmaeus
c.schwartzi??? could be a young one
c.aeneus (Albino) difference in size is simply their gender.