Well here is the list of dealers in the socal area. They may have to order it but looks like any LFS with a Seachem account can order it.
Deep Sea Creations
32909 Temecula Parkway Ste#106 Temecula CA 92592
tel: 951 699 9889 View Stock 52.5 miles Map It
Reef Tropical Fish
1080 North State College Anaheim CA 92806
tel: 714 635 1123 View Stock 4.3 miles Map It
Coral Island
1711 W. Chapman Ave. Orange CA 92868
tel: 714 939 8797 View Stock 6.4 miles Map It
Coral Gazers
15461 Red Hill Ave. Suite E Tustin CA 92780
http://www.coralgazers.com tel: 714 258 8811 View Stock 11.4 miles Map It
Tong's Tropical Fish & Pets
8976 Warner Ave Fountain Valley CA 92708
tel: 714 842 2733 View Stock 13 miles Map It
Coral Oasis
2959 Fairview Rd. Costa Mesa CA 92626
http://www.coraloasis.com tel: 714 957 2993 View Stock 14.2 miles Map It
Phil Your Aquarium
20761 Lake Forest Drive Unit G Lake Forest CA 92630
http://www.Philyouraquarium.com tel: 949 340 3971 View Stock 18.7 miles Map It
Pasadena Tropical Fish
2982 East Colorado Blvd. #108 Pasadena CA 91107
http://www.pasadenatropicalfish.com tel: 626 449 4987 View Stock 22.5 miles Map It
7 Seas
1707 South Gaffey Street San Pedro CA 90731
http://www.7seasspnumber1.com tel: 310 832 5339 View Stock 27 miles Map It
Neptune's Reef
2851 Pacific Coast Hwy Torrance CA 90505
http://www.neptunesreef.com tel: 310 534 2323 View Stock 28 miles Map It
Trekkers Tropical Fish
22547 Hawthorne Blvd. Torrance CA 90505
tel: 310 791 2021 View Stock 28.4 miles Map It
Capistrano Reef
31896 Plaza Drive San Juan Capistrano CA 92675
http://www.capistranoreef.com tel: 949 248 7333 View Stock 29 miles Map It
Aquatic Zoo
2655 Thousand Oaks Blvd Thousand Oaks CA 91362
tel: 805 373 8511 View Stock 59.5 miles Map It
Seaside Tropical Fish & Pets
21162 Beach Blvd. Huntington Beach CA 92648
tel: 714 969 0491 View Stock 17.2 miles Map It
San- Bar Tropical Fish & Pets
270 East 17Th St. Suite E Costa Mesa CA 92627
tel: 949 548 5015 View Stock 17.3 miles Map It
Sand Bar Pet Shop
25571 Marguerite Parkway Mission Viejo CA 92692
tel: 949 768 1815 View Stock 23.1 miles Map It
Aquatica
500 S. Rancho Santa Fe Rd. Suite 101B San Marcos CA 92078
http://www.aquaticacorals.com tel: 760 597 0445 View Stock 63.8 miles Map It
Fish Haven
2203 E. Valley Pkwy. Escondido CA 92027
http://www.fishhaven.net tel: 760 741 1525 View Stock 69.5 miles Map It
New Wave Tropical Fish
1960 N Tustin St. Orange CA 92865
tel: 714 998 8209 View Stock 4.3 miles Map It
Tri-City Tropical Fish
1334 North Melrose Suite J Vista CA 92083
tel: 760 631 1532 View Stock 57.6 miles Map It
Encinitas Tropical Fish
378 North El Camino Real Encinitas CA 92024
tel: 760 634 2427 View Stock 66.7 miles Map It
Aqua Sd
PO Box 7580 Clairemont Mesa San Diego CA 92111
http://www.aquasd.com tel: 858 565 1910 View Stock 83.2 miles Map It
Pet Kingdom
3191 Sports Arena Blvd San Diego CA 92110
http://www.petkingdom.com tel: 619 224 2841 View Stock 86.7 miles Map It
Pets Plus
17440 Crenshaw Blvd. Torrance CA 90504
tel: 310 719 7088 View Stock 26.7 miles Map It
Gill's Marine Aquatics
41860 Enterprise Circle South Temecula CA 92590
http://www.gillsmarine.com tel: 951 296 3114 View Stock 47.2 miles Map It
Shipwreck Cove
545 2Nd St. Suite 1A Encinitas CA 92024
http://www.sccaquariums.com tel: 760 805 6557 View Stock 66.4 miles Map It
Animal House
2726 University Ave San Diego CA 92104
http://www.sdanimalhouse.com tel: 619 295 8834 View Stock 88.9 miles Map It
D & K Aquariums-N-Pet
6072 University Ave. San Diego CA 92115
tel: 619 286 2687 View Stock 90.6 miles Map It
San Diego Aquarium Rock
10463 Austin Drive Spring Valley CA 91978
http://www.sdaquariumrock.com tel: 619 379 2124 View Stock 94.9 miles Map It
South Bay Tropical Marine
1155 3Rd Ave. Chula Vista CA 91911
tel: 619 426 7333 View Stock 99 miles