- Aqua Guard seems possessive of its territory, claiming that "this ocean ain't big enough for the two of us".
- This creature appears on the artwork of Guard Grip and Guard Vision.
- In the TCG, Aqua Guard was swapped with Marine Flower for their DM-01 and DM-04 spots.
- This card's promotional (P13/Y8 and P21/Y8) versions were released with the Puff Chocolate Series 3 food products.
- This card's promotional (P77/Y9 and P85/Y9) versions were released with the Choco Snack food products.
- This card is in a mega cycle of Water Civilization creatures that have a mana cost of 1, 2000 power as well as the Blocker ability and being unable to attack.
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