Maxspect Nano Tech Anaerobic Block Nitrate Control

The Maxspect Nano Tech Anaerobic Block is a high-performance biological filtration media designed to reduce nitrate (NO3) in both freshwater and marine aquariums. Unlike standard bio media that mainly supports nitrification, this block is engineered to encourage anaerobic bacteria growth, which helps complete the cycle by converting nitrate into harmless nitrogen gas. As a result, nutrients are exported naturally, and water quality stays more stable.

Moreover, the compact block design offers a huge usable surface area in a small footprint, making it ideal for sumps, AIO chambers, and filtration compartments where space matters.

Key Benefits of Maxspect Nano Tech Anaerobic Block

1) Efficient Nitrate Reduction

The Maxspect Nano Tech Anaerobic Block is built specifically to support anaerobic zones where nitrate can be processed. Therefore, it helps lower nitrate in a more targeted way, especially in systems that struggle with nutrient buildup.

2) Designed for Freshwater and Marine Aquariums

Whether you run a planted tank or a reef tank, this media supports long-term stability. In addition, it works well in mixed reefs, fish-only systems, and nutrient-sensitive setups.

3) Ultra-High Surface Area in a Compact Block

Each block provides extremely high bacterial colonization capacity. Consequently, you can improve filtration performance without adding bulky media.

4) Helps Improve Water Clarity and System Stability

When nitrate stays under control, algae pressure often reduces, and overall water clarity can improve. As a result, fish and corals are more comfortable, and the aquarium looks cleaner.

Specifications and Coverage

• Block size (each): 97 × 97 × 25 mm (3¾” × 3¾” × 1”)

• Surface area (each block): 1,025 m² (11,033 ft²)

• Water treatment capacity: 2 blocks treat up to 1,000 L / 264 gal

This makes the Maxspect Nano Tech Anaerobic Block a powerful option for medium to large systems, and also an excellent upgrade for smaller tanks that need extra nitrate control.

Where to Place the Maxspect Nano Tech Anaerobic Block

For best performance, place the blocks in a location with steady flow, such as:

• Sump media chamber

• AIO rear filtration section

• Overflow media area

• Large canister filter media tray (if space allows)

Additionally, consistent flow helps deliver nutrients to bacteria while maintaining stable filtration performance.

Recommended Setup for Better Results

For effective denitrification, it is commonly recommended to:

• Stack two Maxspect Nano Tech Anaerobic Block units horizontally

• Place a denitrification catalyst between them (when used)

Also, the catalyst is typically replaced every 2 months to keep performance consistent.

Maintenance and Cleaning Tips

To maintain consistent results:

• Clean or replace the blocks about every 6 months for optimal performance.

• However, do not replace all blocks at the same time. Instead, clean/replace only half, so beneficial bacteria remain to quickly re-seed the refreshed media.

This approach helps protect your biological stability and avoids sudden filtration drop-offs.

Who Should Use This Anaerobic Block?

This is is ideal if you:

• Want lower nitrate without constant water changes

• Run a reef tank with corals that prefer cleaner water

• Feed heavily and need stronger nutrient control

• Have limited space but still want high-capacity bio filtration

In short, it’s a smart choice for aquarists who want a cleaner system with less nitrate swing.