Fish that only ever see food at the surface are fish that never learn to look anywhere else, which is a problem in a tank with bottom feeders competing for the same flakes. Fluval's answer with Bug Bites is a slow-sinking granule, sized between 1.4mm and 2.0mm, so food actually passes through the water column instead of sitting on top of it.

The headline ingredient is Black Soldier Fly Larvae, making up to 38% of the recipe and listed as the first ingredient — a genuinely insect-led formula rather than one using insect meal as a minor addition. Fluval also include whole salmon, described as rich in omega-3 and omega-6 for skin, scale and fin condition, so this is a mixed animal-protein food rather than a purely plant-based one.

• Up to 38% Black Soldier Fly Larvae, the first-listed ingredient
• Whole salmon included for omega-3 and omega-6
• Slow-sinking granule, 1.4mm to 2.0mm
• 45g pack

What the pack does not say. No protein, fat or fibre percentage is published for this recipe, so it cannot be compared numerically against a formulated flake food — Fluval market it on ingredient sourcing (insect and whole salmon) rather than an analysis panel. There is also no statement on whether this is a complete diet or a supplementary feed.

Who it's for: tropical fish keepers who specifically want an insect-protein-led food, and who have fish feeding at different depths in the tank rather than only at the surface.