4 ft tank - final fish your suggestions please

[Doozie]

Hi guys I'm looking for some inspiration to 'finish off' my tank and more importantly some advice on fish compatability.

I have a 4ft tank (48x18x15) which is 46 Uk gals and runs an external filter. Current I am stocking:

• 4 x albino corys
• 1 x bn plec
• 1 x ruby shark
• 1 x angelfish
• 1 x dwarf gourami
• 2 x rainbow fish

I'd like to get a shoal of something but not sure what? I used to have 5 rainbow fish but they didn't do well and 3 died. I replaced them with another 3 and they died too. Checked all my water levels and they are fine.
All the current fish get on well with eachother.

So moving on from the rainbows what would you suggest I get? By my reconing I have about 20inches left to play with. thanks.

 

[Lupin]

What species are these rainbow fish you tried?

 

[Doozie]

bosemani

 

[Lupin]

That's strange. They're usually hardy although they will not do well if your water is soft and acidic. Switch to Melanotaenia praecox. You could try the Columbian tetras (Hyphessobrycon columbianus) or kerri tetras (Inpaichthys kerri). Keep 10 of either species.

 

[Doozie]

Actually my water is soft up here in West Yorkshire so maybe that explains it.
thanks for your suggestions

 

[Lupin]

All the other fish you mentioned like soft and acidic water so they will actually thrive and even spawn in your tank. Melanotaenia praecox are a nice choice since they are very prolific fish. Once they start spawning, they will do so on almost daily basis.