Boyd deals
Boyd is known for Chemi-Pure, a resin-based filter media that aquarium keepers put in canister and hang-on-back filters to remove dissolved organics, dyes and odors. The line splits into the original blue Chemi-Pure and Chemi-Pure Green, sold in jars and bottles from 5 oz up to 40 oz. This page currently lists no live deals, so prices are shown as listed by each store rather than as markdowns.
Prices at every store and price history for Boyd products.
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Boyd products: prices and price history
Questions and answers
- What is the difference between Chemi-Pure and Chemi-Pure Green?
- Original Chemi-Pure is a mix of ion-exchange resin and activated carbon aimed at general chemical filtration. Chemi-Pure Green uses a different resin blend marketed for planted and reef tanks where phosphate and organic buildup matter. Both come in the same jar and bottle sizes.
- How much media do I need for my tank?
- Boyd sizes the product by jar volume, not by tank gallons, so match the amount to your filter chamber. The 5-oz jar suits nano and small hang-on-back filters, the 10-oz jar fits most mid-size canisters, and the 40-oz bottle is for large systems or multiple tanks. The 6-pack of 5-oz jars is for keepers who change media often.
- Where is Boyd Chemi-Pure cheapest?
- Prices vary by jar size and store, and this page has no active deals right now. Compare the per-ounce cost across the 5-oz, 10-oz and 40-oz sizes, since the bulk bottle is usually the lowest cost per ounce. Check the listed store price and date before buying.
- How often should Chemi-Pure be replaced?
- Boyd's guidance is roughly every four to six months in normal use, sooner in heavily stocked tanks. Replace it when you see color change or a rise in nitrates and organics. Rinse it lightly before use; do not rinse it in tap water if you keep sensitive invertebrates.
- Does Boyd accept returns on filter media?
- Return policy is set by the store you buy from, not by Boyd, so check that store's terms before ordering. Sealed jars are more likely to qualify than opened ones. Buy the smallest size first if you are trying the media for the first time.