For saltwater fish I would try Clayton Pet Emporium which I think is off North Hanley Road. Also Tropical Island Pets is good for saltwater off of Watson Road. Pet Market Place is a couple minutes from Tropical Island Pets but it's not as good for saltwater. And Beldt's Aquarium in Hazelwood is one of St. Louis's best lfs
. Theres is also a place called Marine Solutions but I've never been there and I'm not sure where it's at, but you could try it if you want and tell me how it is.
If you have any other questions, just ask.
55 Gallon-two clown knifefish, chocolate pleco
46 Gallon Bow Front-Planted-swords, java fern and African cichlids, sail fin pleco
29 Gallon-black ghost knifefish, bristlenose pleco
10 gallon-brackish, figure-eight puffer, knight goby