What are these?

They are all cichlids. They can be aggressive, they breed easily. You can add tiny bits of salt (do research) to help bring out color. IMe, keep the cichlids by themselves (i.e. just cichlids). I wouldn't add plants to the aquarium.

Hope that helps a little.

 

No the last one is a Cichlid also I believe. I am not sure which one though.

Go the link I posted and compare your fish to the images of the Cichlids.

 

First two are yellow Lab Cichlids. One of the most common/demanded in the trade.

2nd might be Tropheus duboisi. If it is, they prefer vegies.

3rd might be a red zebra.

 

Thanks. I will definitely do some research now that I know what species they are.

 

While cursing around I found this link and thought you might enjoy it.

TFH Magazine Forum • Index page

 

Thanks a lot. I am sure it will be very informative.

 

i don't think he is a goldfish with a little cichlid experience i think he is a red zebra cichlid
this cichlid is from lake Malawi in africa. where the lake has a high ph (in some places higher than saltwater) but may need some cichlid salt

here is a care guide to cichlids:Lake Malawi Cichlid Information for Beginners