CaribSea Aragonite - Florida Crushed Coral Marine Puffers discus are known to be

discus are known to be finicky eaters by nature

Manufacturer's Recommended Dosing:

Flourish Excel™ is a simple source of readily available organic carbon

may even be beneficial

CRIT has you covered

CaribSea Aragonite - Florida Crushed Coral Marine Puffers discus are known to beCaribSea Aragonite Dry Sands are great for new tanks or adding sand to currently established tanks. Florida Crushed Coral is ideal for very high flow tanks with a lot of water movement that might blow other finer sands around and create bare spots. This grade of substrate is not recommended on its own for tanks with sand dwelling or sand sifting creatures, although it may be used effectively in combination with other finer substrates to fill in bare