Flasher for Bluewater Hunting

Flashers for bluewater hunting: attractor devices using light reflection and vibration, available in Spinner, Shoal, Bait Ball, Combo and Inline. Brand Rob Allen.

Flashers for Bluewater Hunting

In bluewater spearfishing (Bluewater Hunting), the main challenge is not shooting technique, but spotting pelagic fish in an open, featureless environment. A spearfisher’s underwater visibility is limited: large pelagics such as tuna, wahoo, billfish, amberjack, and other predators can pass within a few dozen meters without being detected. The flasher solves this problem by generating visual and mechanical stimuli that cause predators to change course and move closer to the source.

A flasher works through two distinct mechanisms: light reflection, generated by polished metal surfaces that scatter light in all directions, and mechanical vibration, produced by the movement of rotating or oscillating components in response to manual movement or wave action. The combined effect of these two stimuli imitates the presence of a distressed baitfish school, a signal that attracts predators from considerable distances. Once the fish has moved in, the diver has the opportunity to make the dive and get into shooting position while the fish remains distracted by the flasher.

Deep Blue offers a selection of Rob Allen flashers developed for bluewater spearfishing, including the flasher floats needed for correct positioning in the water column. The available models cover different needs in terms of visibility conditions, target species, and method of use.

Types of flashers available

Spinner Flasher

The Rob Allen Spinner Flasher is the most widely used model for spearfishing in clear water. The mechanism consists of a series of small polished stainless steel spinners that rotate around the central axis, driven by water resistance during wave movement. The continuous rotation generates a 360-degree flash effect, visible from different angles. At the bottom of the flasher there is a colored rubber cuttlefish that contributes to the bait effect. This model is particularly effective in clear water, where the light component is more important than the vibrational component.

Shoal Flasher

The Rob Allen Shoal Flasher is designed for reduced-visibility conditions or slightly murky water. Its structure generates stronger vibrations than the Spinner, capable of attracting fish even before they can see the flasher. When light penetration in the water is not sufficient to ensure an effective optical effect, the vibrational component becomes the main driver of attraction. The Shoal still works in any sea condition, making it a versatile tool.

Combo Flasher

The Rob Allen Combo Flasher was created by integrating the features of the Spinner and the Shoal into a single device. It combines spinner rotation with the generation of structural vibrations, making it effective both in clear water and in moderately reduced-visibility conditions. Movement is activated automatically by wave action, with no active intervention required from the diver, except on flat-calm days. It is the model that offers the greatest adaptability to the variable conditions typical of open-water outings.

Bait Ball Flasher

The Rob Allen Bait Ball Flasher line differs from the previous models in its structure: instead of rotating or vibrating elements, it visually reproduces a school of small baitfish. Each individual metal fish is fitted with a swivel that allows it to rotate independently, generating fragmented flashes that imitate the behavior of fleeing or distressed fish. The Mini model and the Big model differ in size, resulting in a difference in light-reflection area and overall visual effect. Both versions require a flasher float for positioning in the water column.

Bait Ball Flasher in Capsule

The Rob Allen Bait Ball Flasher in Capsule is the version of the Bait Ball Mini supplied inside a compact watertight container. The container serves a dual function: protecting and carrying the flasher, and acting as a support float once the flasher is deployed in the water. It includes a miniature stainless steel line winder with 12 meters of monofilament and a clip with swivel for connection. It is a self-contained, compact solution, suitable for carrying on a belt during shore dives or in situations where space is limited.

Inline Flasher

The Rob Allen Inline Flasher is conceptually different from the others: it does not require a flasher float and is not lowered vertically in the water column. It connects directly between the speargun and the floatline, remaining active both during dives and during surface intervals. It is the solution for those who do not want to manage the additional equipment of a separate float, or for outings where the goal is to keep the setup as compact as possible.

Flasher floats: Rob Allen Flash Float

The Rob Allen Flash Float flasher floats are accessories dedicated to correctly positioning flashers in the water column. Made from the same plastic material as the Rob Allen Hard Float, they are high-visibility orange and feature a system for neatly winding the monofilament. They are equipped with balancing ballast in the lower section to maintain a vertical position in the water, and come complete with 15 meters of monofilament. The float can also be used as a chum holder on outings where chum is used.

How to choose a flasher for bluewater spearfishing

Choosing the right flasher depends on three main variables: water visibility conditions, target species, and the practical setup of the outing.

High visibility: the Spinner Flasher is the reference model. The 360-degree rotation of the spinners ensures maximum light projection when sunlight penetration is optimal.
Reduced visibility or murky water: the Shoal Flasher is the most suitable model because its attraction is mainly vibrational, and vibrations travel through water independently of clarity.
Variable or uncertain conditions: the Combo Flasher is the safest choice, because it integrates both mechanisms and automatically adapts to current conditions.
Nearshore fishing or compact outings: the Bait Ball Flasher in Capsule is the most practical solution for carrying on a belt or on the float, with everything needed in a single watertight container.
For those who want to avoid using a flasher float: the Inline Flasher is the correct choice, as it integrates directly into the speargun setup.

One aspect that is often underestimated is positioning depth. Flashers must be lowered within the diver’s visibility and to a depth sufficient to allow the fish to approach and remain within shooting range. The depth range generally recommended by spearfishers practicing Blue Water Hunting is between 7 and 15 meters, going deeper only in environments where visibility is very high and the target species tend to stay deeper.

In any case, experience is the key factor in positioning. A flasher positioned too deep reduces the chances of drawing fish in; one positioned too shallow may not generate enough attraction for fish holding deeper.

Practical use

The flasher is deployed before beginning the dives, lowered to the chosen depth using the line wound on the flasher float, and attached to the float with a clip. Once positioned, the diver waits for the fish to start moving in, then makes the dives while taking advantage of the distraction the flasher creates for the target fish.

During drift bluewater hunting—a common method when operating far from shore—the flasher drifts together with the diver. In this case, it is important to keep the flasher within your visibility, adjusting the line length to the current visibility conditions.

On boat outings with multiple divers, it is common to use several flashers at the same time, positioned at different distances to create an extended attraction zone. Coordination between spearfishers helps optimize dives in relation to the fish moving in.

The Bait Ball Flasher in Capsule is also suitable for quick use during shore dives: with the watertight container attached to the belt or float, the flasher is deployed and the container immediately acts as a float, with no additional equipment required.

Available brands

Deep Blue’s flasher category is entirely covered by the Rob Allen brand, a South African manufacturer with a long tradition in building equipment for bluewater spearfishing. Deep Blue is the official Rob Allen distributor for the Italian market. The flasher range offered covers all types of use in Blue Water Hunting, from the most versatile models to compact solutions.

Conclusion

Flashers for bluewater spearfishing are technical tools that help a spearfisher attract large pelagics within shooting distance, leveraging predators’ instinctive response to light and vibration stimuli that imitate the presence of prey. The Rob Allen range available from Deep Blue covers every operating situation: from the rotating model for clear water, to the vibrational model for reduced visibility, through to compact and integrated solutions for outings without additional equipment.

Choosing the right model depends on the visibility conditions typical of the fishing area, the target species, and each diver’s operating preferences. Flash Float flasher floats complete the setup, allowing correct positioning in the water column and neat management of the support monofilament.