API Replacement Test Tubes For Aquarium Liquid Test Kits, 24 count API Medication These nutrients are consumed over

These nutrients are consumed over time in the aquarium

On artificial rocks for good footing in soil

Media inside basket

for each 50 gallons of aquarium water

The Juwel Compact Fine Sponge Filter Media is designed to remove small to medium sized particles and within its design allows bacteria to flourish and multiply down to its large surface area

API Replacement Test Tubes For Aquarium Liquid Test Kits, 24 count API Medication These nutrients are consumed overAPI TEST TUBES are compatible with any aquarium or pond water test kits and are perfect for testing more water parameters at one time. The pack includes 24 glass test tubes with snap tight plastic caps. Size: 24 pcs per box