NeaterHeater - AvidAqua

The AvidAqua NeaterHeater is a magnetic, suction-cup-free mounting system designed to securely hold up to two aquarium heaters in place. It eliminates the common failure points of traditional heater mounts while keeping heaters properly positioned for safe, consistent temperature control.

Using AvidAqua’s sealed ModMag magnet system and Slide-Loc tool-free silicone retention design, the NeaterHeater provides a reliable, low-profile solution for mounting glass or titanium heaters on glass or acrylic aquariums up to 3/8" thick.

Secure Dual-Heater Mounting

The NeaterHeater is designed to hold up to two glass or titanium heaters, making it ideal for systems with a redundant heating setup. Heaters stay firmly positioned on the aquarium or sump wall, preventing slipping, sagging, or contact with other equipment during normal operation or maintenance.

Compatible with most common heater sizes, the NeaterHeater installs cleanly on glass or acrylic up to 3/8" thick and keeps heaters properly spaced.

Sealed ModMag Magnetic System

AvidAqua’s ModMag mounting system replaces suction cups with fully sealed, ultrasonically sealed magnets. Each magnet enclosure is pressure tested to prevent water intrusion and corrosion, eliminating one of the most common failure points of magnetic aquarium accessories.

A built-in shake test allows you to quickly verify that the magnet seal remains intact, providing long-term confidence in the safety of your system.

Slide-Loc Retention and Modular Design

Heaters are secured using patent-pending Slide-Loc technology, which holds heaters in place without annoying thumbscrews. Installation is tool free, and adjustments are quick and simple.

Included ModMag expansion adapters allow additional magnets to be added for increased holding power when needed. The ModMag platform also supports other compatible accessories, allowing multiple tools to share a single, clean mounting solution. Backed by an AvidAqua Lifetime Warranty, the NeaterHeater is built for long-term reliability.

What’s the Difference Between NeaterHeater and NeaterHeater Pro?
Both versions use the same Slide-Loc heater retention system and sealed ModMag magnets, but the NeaterHeater Pro adds more holding power and flexibility.

NeaterHeater includes one ModMag Mega and mounts on glass or acrylic up to 3/8" thick.

NeaterHeater Pro includes two ModMag Mega magnet sets, supports thicker walls up to 1/2", and can be configured as a single stronger mount or split for longer heaters.
 

Specifications

In-tank dimensions (LxHxD): 5.16" x 3.54" x 2.28" (131mm x 90mm x 58mm)
Maximum Glass Thickness: Up to 3/8" (10mm)
Capacity: Up to 2 heaters
Heater Compatibility: 0.5" to 1" (13 to 26mm) in diameter

What's Included?

NeaterHeater

ModMag Mega

Glass-Gripper Silicone Cover

The ModMag is the foundation of many AvidAqua solutions, providing secure and flexible magnetic attachment for accessories both inside and outside your aquarium. With a sliding-slot design, you can mount multiple accessories simultaneously, making it the most versatile magnetic attachment system available.

Unlike traditional acrylic-based mounts that rely on glue and can degrade over time, the ModMag is made from durable, inert ABS plastic, ultrasonically welded and redundantly double-sealed to prevent water intrusion. This ensures a reef-safe, long-lasting solution that won’t corrode or leach harmful metals into your tank.

ModMag Mega

Designed for glass up to ½” (13mm) thick, the ModMag Mega provides strong and secure mounting for a wide variety of aquarium accessories.

Key Features:

• Ultra-Strong Magnetic Hold – Securely attaches accessories to glass and acrylic aquariums.

• Supports Multiple Accessories – Compatible with frag racks, probe holders, tube holders, feeders, camera mounts, and more.

• Slide-Loc® Attachment System – Accessories mount easily via horizontal and vertical slots.

• Reef-Safe & Rust-Proof – Ultrasonically welded, double-sealed ABS construction prevents water intrusion.

• No-Worry Shake Test – Built-in audible leak safety test ensures magnets remain intact.

• Compact & Open-Source Design – Supports 3rd party and DIY accessories for endless customization.

• Available in Two Strengths – Mega (½” glass) and Giga (¾” glass).

• Lifetime Warranty – Backed by AvidAqua’s guarantee for lasting durability.

From frag racks to camera mounts, the ModMag Mega & Giga make aquarium customization effortless and future-proof!