Thinking about Corys

[Kamdavid]

Petco has buy 3 get one free right now. Thinking of stopping by and looking. I do have sand substrate

 

[Meg0000]

Petco has buy 3 get one free right now. Thinking of stopping by and looking. I do have sand substrate

If your tank is suitable for them why not! What's the size, fish you have in your tank, water parameters?

 

[Kamdavid]

It’s a 20 g. I have two platys and three guppies and 3 Molly’s. I haven’t checked the water parameters but last time I did everything was perfect. Ammonia was 0 nitrate was 5 I believe 0 for nitrite and ph was 7.4

 

[Meg0000]

It’s a 20 g. I have two platys and three guppies and 3 Molly’s. I haven’t checked the water parameters but last time I did everything was perfect. Ammonia was 0 nitrate was 5 I believe 0 for nitrite and ph was 7.4

You have hard water fish in your tank and corydoras are soft water fish. What is your GH?

 

[Kamdavid]

You have hard water fish in your tank and corydoras are soft water fish. What is your GH?

I don’t remember it and it was very hard for me to find out what it was

 

[PheonixKingZ]

Is it a 20g high or a 20g long tank?

It is recommended to have 6 or more Cory’s in the same tank. But 6 in a 20g (depending on if it is a high or a low) is pushing it.

We do need to know the tank detentions (or if it is a 20g high or long) and what your pH and GH is.

 

[dmpfishlover]

API has a GH/KH test kit that you can purchase through Amazon for under $10. If it was too difficult to figure out what your water hardness was in the past, I would order the test kit and test your Tap water. I wouldn't suggest that you buy any other fish until you know what your water hardness is, as Meg0000 has already suggested. The hardness of your water really determines what types of fish you can keep.... as well as tank size/dimensions as PheonixKingZ has mentioned as well.

 

[Kamdavid]

Is it a 20g high or a 20g long tank?

It is recommended to have 6 or more Cory’s in the same tank. But 6 in a 20g (depending on if it is a high or a low) is pushing it.

We do need to know the tank detentions (or if it is a 20g high or long) and what your pH and GH is.

I know it’s not a long. More square ish I guess. I bought a 24 inch light bar. Don’t remember measurements. Not home at the moment.

 

[CassCats]

A 20 tall is still fine for cories. I have 20 talls and got cories in them just fine.

Corydoras aeneus can handle hard water, as per seriousfish.com

Corydoras aeneus – Bronze Cory (Corydoras schultzei, Corydoras venezuelanus) — Seriously Fish

www.seriouslyfish.com

Depending on your numbers, you could potentially opt for this species. Will be sold under "green corydoras" occasionally, or the albino version

 

[Byron]

First, you need to find out the GH and pH of your tap water. You have fish in the tank that must have moderately hard or harder water (livebearers). Plus, you have too many for this tank. They will if healthy grow, and mollies attain 3-5 inches, platies a bit less. This is going to really push things in a basic 20g tank.

You may be able to get the GH and pH from your water authority, check their website, or call them. For GH get the number and their unit of measurement.

Cories OK, if one of the common species (until we know the GH). A group of five or six is needed.