Sand shifting goby & 3 snails in sand

[JennyH3]

I have 1 strawberry conch & 2 super Tongan nassarius snails In my daughters 30 gallon tank.

I would like to add a sand shifting goby. Would the goby and snails be fighting for food in the sand?

if not what goby can I get. Assuming the diamond would be to large. I’ve researched smaller sand shifting: could I do a court jester (rainforord) goby or an Oranet crosshatch. is there another sand shifting goby that is small?
the diamond is my daughters favorite “pretty” wise.

 

[Kremis]

You could get a diamond goby that is eating prepared foods, most of mine that I have kept ate frozen. But yes it would probably outcompete your snails.

Court jester goby is a decent idea, get one eating frozen though. Biota has captive bred ones, definitely the best option and actually not that much more expensive. Probably wont outcompete your snails that bad

Biota Court Jester Goby

Suitable for a tank as small as 10 gallons, the colorful and peaceful court jester goby (Koumansetta rainfordi) is perfect for many marine nano-tanks. They have been documented eating red cyanobacteria. These captive bred specimens are much hardier and easier to feed than wild individuals...

www.algaebarn.com