It may be OK to use these medias to control the nitrates but they are only band aids to the problem. Find the cause of high nitrates and then controlling them is easier. Do you use a filter media, bio balls, CC substrate or bio wheels? Any place that detritus can build up will lead to high nitrates after the nitrification process ends. Do you have LR or a DSB for denitrifying bacteria to grow? This bacteria needs anaerobic conditions to flourish. For now the best way to reduce the nitrates is water changes.
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28gal bowfront
40lbs livesand(bag from LFS), 30lbs live rock( LR.com)
2 O. Clowns
1 peppermint shrimp, 5 red leg hermit crabs,
4 mexican turbo snails, 15 nassarius snails
ricordea mushroom, candy cane coral,
super color polyps, hairy mushrooms
bubble coral, hawiian feather duster
coralife lunar 2x65, HOT magnum canister
10 Gal refugium(chaeto) & seaclone skimmer
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