Re: " . . . As far as increases go don't forget that there are other factors besides the US exchange."
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Of course there is which is why I stated that "other factors" had to be in play BESIDES just the USD conversion rates.
However, the comment to which I initially responded (Post #5 with clarification added in Post #8) was that the "falling loonie" was given as THE (only) reason in Post #2. As far as markup rates are concerned, these are all over the map. Hypothetical Example: There are items bought from wholesalers for $10 and sold by retailers for $30. That is why, later, a retailer can have a "half price" sale and still make a few bucks. As far as I know, retailers in Canada are not legally/ethically bound to sell at the MSRP - "manufacturer's suggested retail price" - but that figure is used as a guide only. (Please correct me if I am wrong in this regard.)
ALSO : By "retail" I am not referring to only aquarium hobby shops. Retail is anything from clothing, jewelry, electronics, office supplies, cars, health and beauty aids, groceries, etc. Rates of markups vary greatly from one business to another - AS WELL AS within the aquarium and fish supply business.
So . . . shop around and take advantage of "Price Match Guarantees", when available, for aquarium and fish needs.