Cubaris Cubaris sp.
Rubber Ducky Isopod: What's a Fair Price?
A Rubber Ducky Isopod costs $8.00–$33.25 per isopod today; the median is $10.79. Based on 17 listings across 2 US vendors, updated July 20, 2026.
Cheapest per vendor
| Vendor | Listing | Per isopod | Listing price | Stock | |
|---|---|---|---|---|---|
| Tropical Isopods | Cubaris sp. "Rubber Ducky" — 5 (5 isopods) | $8.00 | $40.00 | in stock | view → |
| Rubber Ducky Isopods | "Red Pak Chong" Red Faced Rubber Ducky Isopods (Cubaris sp.) 6 Count (6 isopods) | $11.58 | $69.49 | in stock | view → |
Per-isopod prices are computed from the stated group count (a $36 ten-plus-two culture is $3.00/isopod). Shipping and live-arrival guarantee terms differ by vendor and can change which one is cheapest to your door.
Reading today's numbers
The highest per-isopod price for Rubber Ducky Isopod today ($33.25) is 4.2× the lowest ($8.00). A spread that wide usually reflects real differences between the listings — group size is the usual driver, since larger cultures tend to work out cheaper per isopod, and some listings mix sizes or include breeding adults. When judging a price, the median ($10.79) is the better anchor than the low: the cheapest listing can be a large-culture price. If a quote is well above the median, check the vendor table above to see what group size you're comparing against. Note that 10 of 17 tracked listings are in stock right now; today's stats come from the in-stock ones.
Price history
This chart is just getting started — we add a new point every day, so check back as the history builds.
We check Rubber Ducky Isopod prices at every vendor we track, every day. How the index works · Cheapest isopods today