Hello From Canterbury.

Go for it!

I have red cherry shrimp and wouldn't be without them 

Ha - coincidentally, I was researching shrimp yesterday, as I was beginning to think a shrimp-only tank might be all the space I could amount to creating. Red cherry shrimp were what I came up with too as the best option.

Okay there's an expression I haven't heard, 'karked it'. I'm wondering if @Clarapup is going to give an alternative explanation? 

I certainly know that expression, and I only lived in England for a short while.

My wife has a 30 l shrimp only tank.  They are cherry shrimp (neocaridina davidi).  She bought reds and blues which created chocolate when they bred.  They breed so quickly we frequently give the local MA a bunch for free.  I've volunteered for darkness (my betta) to go in with them for some population control but it hasn't happened yet. 

I think you should all go out and buy a shrimp tank now.  Go on.  *nudge, nudge*

They are cherry shrimp (neocaridina davidi).  They breed so quickly we frequently give the local MA a bunch for free.  I've volunteered for darkness (my betta) to go in with them for some population control but it hasn't happened yet. 
I think you should all go out and buy a shrimp tank now.  Go on.  *nudge, nudge*

I'm sure I read somewhere on here yesterday that amano shrimp are less likely to breed, is that correct?

Amano larvae do need brackish water to survive. In the wild they get washed downriver where they spend some time as larvae then either just before or just after (forget which) they metamorphose into adults, they make their way back upstream.
Nerite snails do the same thing which is why they don't over populate a tank.