AUCTIONS
At MASI
The MASI auctions are held three times a year - in the winter (February), in the spring (April or May) and in the fall (November). They are a standard auction with an auctioneer running a verbal auction throughout the day. A silent auction runs for most of the day as well.
Sellers must pre-register with the auction chairman and only aquarium or pond related items may be sold. Buyers may register at the door. Registration is free. The auction split is set before the auction and defined in the rules. You do not need to be a member to buy or to sell, but MASI members get priority of registration as a benefit of membership.
Once the auctioneer says “sold”, items are sold. If you want to bid on an item, hold your bidder number up until you no longer want to bid. Call the auctioneer’s attention if he/she doesn’t see you.
Everyone must pay in full at the end of the auction. Payment by cash or credit card is accepted. We do not apply a person’s sales to their purchases. Payments will be made electronically or by check at the seller’s choice within 7 days of the close of the auction.


Become a Buyer or Seller
Next Event...
FALL AUCTION
Saturday, Nov 8
Doors open @10:00 a.m.
Auction begins @11:00
Where is it?
All auctions are located at:
Jost Chemical Company
8150 Lackland Rd, St. Louis, MO 63114


The Missouri Aquarium Society auctions are fantastic! I found rare fish and invertebrates while connecting with fellow enthusiasts. Highly recommend for any aquatic hobbyist!
John D.
★★★★★