I want a hi-fin red banded goby and a pistol shrimp but the two times I have asked my LFS says they have bulldozer shrimp that will pair up with a shrimp goby but are more peaceful than a pistol shirmp. Is this true? He couldnt find the bulldozer they said they had but said it was red and white stripped which makes me think it is a tiger pistol shrimp. Are these the same thing? If they arnt, which one is better in terms of reef safeness and being able to pair up with a shrimp/prawn goby? I found through a google search that they do pair up with shrimp gobies(http://marinebio.org/Oceans/BioticStructure.asp , scroll down to symbiosis) and that the shrimp are almost completely blind and require the goby for protection? If that is true, then I dont think it will be any harm to my tank. Any suggestions welcome, thanks!