What Other Fish Can I Add?

[jake_black_holes]

So...

I have a 50 litre tank with a few minnows and a few zebra danios. a sucking loach and a few snails.
water temp is kept between 16-22 (depending on how cold my room gets)

What other fish can I add to this habitat that will cause no problems to my other fish? or receive any problems from my other fish?

Thanks

 

[snake007]

So...

I have a 50 litre tank with a few minnows and a few zebra danios. a sucking loach and a few snails.
water temp is kept between 16-22 (depending on how cold my room gets)

What other fish can I add to this habitat that will cause no problems to my other fish? or receive any problems from my other fish?

Thanks

Zebra danios are schooling fish and should be in no less than 8 and your tank cannot house that so i suggest rehoming the danios as they need a 4ft +, What is this 'sucking loach'? Isit a pleco?
What are the dimensions?
Did you cycle the tank?