Cichlids that could go in a fluval fex 123l (32.5 US gallons)?

[nathanm]

Looking for personable, colourful and plant and fish friendly (if they even exist) cichlids

 

[Lajos_Detari]

You can consider the either South American or African Dwarf Cichlids but it will depend on your water GH, pH.
You can check your tap water chemistry from your tap water company website. Look for the water analysis report.

If you have soft water (low GH) and low pH, you can consider the South American Cichlids like Apistogramma, Blue Rams, etc.
Check the links below. You can also search youtube for their videos.

South American Dwarf Cichlids - Aqualog.de

Dwarf cichlids is the term used for all members of the cichlid family (Cichlidae) whose maximum eventual size does not exceed 10 cm. In South America this means the species of the genera Apistogramma, Apistogrammoides, Nannacara, Ivanacara, Laetacara, Dicrossus, Crenicara, Biotoecus, and...

www.aqualog.de

http://www.qianhufish.com/qql/slot/u2258/fish%20catalogue/cichlids/qian%20hu%20catalog%20inside-41.jpg

But if you have hard water (high GH) and high pH, you can consider the African shell dweller.

Meet the shell dwellers

In the dangerous expanses of open water, it can pay to be a small fish. So small, in fact, that you can hide in a snail shell. Meet evolution’s curiosities from Tanganyika.

www.practicalfishkeeping.co.uk

 

[Essjay]

In the UK, hardness is usually given separately from the water quality report. But as you give your location as London I would expect your water to be hard. Your water company's website should confirm this. If you can't find your hardness, tell us the name of the water company and we'll see if we can find the page.

 

[nathanm]

In the UK, hardness is usually given separately from the water quality report. But as you give your location as London I would expect your water to be hard. Your water company's website should confirm this. If you can't find your hardness, tell us the name of the water company and we'll see if we can find the page.

I should probably have mentioned that since my water is 20ppm I'm mixing ro water with tap water so can do any parameters

 

[Essjay]

Ah, that's perfect for dwarf south American cichlids Most of them can be kept with mid water fish.