Snail-eating Fish

I misinterpreted the title, fearing the potential for snails to consume fish.    In fact, I might modify the title to insert a hyphen to avoid similar interpretations. 

I can't answer your question but just a forewarning for anyone reading this that sparkling gourami are also effective at shrimp control - I've read this several times.

I once had dwarf chain loaches, Ambastaiai sidthimunki. While did see a loach once or twice swimming round with a tiny ramshorn snail on its 'nose', they did not seem to make an appreciable difference to the snail population. I now also have physid snails, and have no idea whether the loaches would have eaten them.



But it is never a good idea to encourage anyone to get a fish just to eat snails. Most of the snail eating fish are on the large side and totally unsuitable for small tanks. Besides which, snails are an important part of a tank's ecosystem and people should be encouraged to keep snail numbers under control by feeding the fish less rather than buying a fish to solve a perceived problem.

So-called pest snails eat just about everything in the tank and reduce it in size then bacteria and other micro-organisms reduce it further, but shrimps eat fish food and some algae. Once I discovered that snails are good for a tank I leave them be.
I have:
those tiny ramshorn snails
physid snails, often called pond snails
Malaysian trumpet snails
nerite snails