How much can an aquarium raise with a silent auction?

Short answer: how many in-water experiences the dive and husbandry teams could support, and whether the dive community was invited.

Revenue across aquariums

Working it out from membership and divers

An aquarium has one audience nobody else can reach and one ceiling set by operations.

• Members, segmented by recent visit
• The local dive community — shops, clubs and certification schools
• Two average-bid figures: one for the family audience, one for in-water items
• How many in-water experiences dive operations will support across the whole auction

The fourth input is a hard ceiling rather than a target. Selling past it raises more this year and loses the item next year.

What moves it

How many in-water experiences you can support

A dive in an exhibit is the headline lot and its ceiling is dive-operations capacity, not demand. Ask early; the answer sets the top of the catalogue.

Whether the dive community was invited

Certified divers are a ready-made audience for exactly your strongest item, and reaching them is two conversations with local shops and clubs.

Membership segmentation

Recent visitors bid; lapsed members mostly do not. The list is large and is typically mailed as one.

A catalogue that survived the screen

Items pulled after bidding opens cost more than the item was worth — in trust, and in the awkwardness of unwinding bids. Screening first is a revenue decision as much as a values one.

Setting the goal

Work from a programme cost husbandry or conservation can confirm, check which entity can receive and spend it, and ask the displacement question before publishing.

Goal and budget mechanics: fundraising goals and budget.