I'm thinking about building a species tank for my harlequin shrimp. This tank would only be about 10 gallons, tied into a 10g sump. Tank dimensions would be 18" long x 12" high x 11" deep. Taking into consideration the small size of this tank, what would make a good tankmate/s? I was thinking something small, like a panda goby or firefish. Since my harly is somewhat reclusive, it would be nice to have something else to look at in the tank when he is hiding after a meal.
Also, my harlequin is a male, any opinions on if I should try to find him a mate?
Also, my harlequin is a male, any opinions on if I should try to find him a mate?



