Pro Line Aqua Black Soldier Fly Koi Treats

Pro Line Aqua Black Soldier Fly Koi Treats

Natural larvae in 400g and 800g packs, with clear net weights and tub sizes

Pro Line Aqua Black Soldier Fly is a larvae-based treat for adding variety to a koi feeding routine. The supplier identifies the ingredient as black soldier fly larvae and declares 43% protein and 36% fat. These are natural larvae, so choose them as a different food format from the manufactured pellets in the Pro Line Aqua range.

Choose a 400g pack in a 2.5-litre tub or an 800g pack in a 5-litre tub. The selector uses the net food weight. Litres describe the container volume, not another weight option, and a 5-litre tub does not contain 5kg of food. Both sizes are the same Black Soldier Fly product.

Which tub should you choose?

Net food weight	Stated tub volume	Product reference
400g	2.5 litres	KF221
800g	5 litres	KF222

The 800g option contains twice the net weight of the 400g option. Compare the selected pack’s price by weight when deciding which offers better value for your pond. The smaller tub may be more practical if treats are offered only occasionally or you are introducing this ingredient for the first time. Choose the larger pack around an established feeding routine and the amount you expect to use while fresh.

Neither tub size specifies the size of an individual larva. Natural pieces are not graded into the 3mm and 6mm pellet choices used for some other foods. Check the pieces and observe whether the fish you intend to feed can take them comfortably, especially in a mixed collection with smaller koi.

Ingredient and declared analysis

The supplier identifies black soldier fly larvae as the food ingredient. Its UK catalogue gives the following analysis for this product:

Protein	43%
Fat	36%
Ash	4.6%
Moisture	8%

These figures describe the Black Soldier Fly larvae, not the Pro Line Aqua Silkworm Pupae or Koi Treats Mix. Each food has its own composition. In particular, an analysis for one ingredient should not be used as the nutritional declaration for a mixture containing several ingredients.

Protein and fat percentages describe the food, rather than the proportion of your daily ration to feed as treats. Read the declaration and directions on the tub you receive. When comparing foods, consider their intended use alongside the analysis instead of choosing a portion from the protein percentage alone.

How to include larvae in a feeding routine

With a declared fat content of 36%, portion size deserves attention. Offer a modest treat portion within the feeding routine rather than adding an unrestricted extra meal after the normal ration. Keep the regular pellet food as the basis of the diet and observe how the fish respond when introducing a different food.

Offer a little at a time while the koi are actively feeding. Watch individual fish as well as the overall response: the quickest feeders can take most of a small offering before quieter fish have reached it. Avoid adding substantially more just to keep the most enthusiastic fish occupied. Remove uneaten food and reduce the next portion if pieces remain.

Follow the seasonal and preparation directions on the supplied tub. The source information reviewed for these larvae does not specify a numerical minimum water temperature or a soaking time. The 15°C threshold and half-hour soaking instruction associated with the separate Silkworm Pupae product should not automatically be applied to Black Soldier Fly larvae.

Comparing larvae with your usual pellets

If you are reviewing the complete feeding routine, our Pro Line Aqua Growth and Top Color pages explain those pellet options. For cooler-season planning, see the separate Wheatgerm 15kg, 3mm food. Choose each food according to its own guidance and the current pond conditions.

A tub of larvae is not a different pellet size of one of those formulas. It offers a different ingredient and texture, with its own nutritional declaration. Retaining the distinction makes it easier to compare products and to keep track of what the fish are actually receiving.

Storage and handling between feeds

Close the tub securely after use and keep it in a cool, dry place away from direct sunlight. Use clean, dry hands or a dry scoop, and avoid splashing pond water into the container. Follow the supplied best-before and storage instructions, keeping the label with the food if you transfer part of it into another container.

If several people feed the pond, agree the treat portion as part of the shared routine. This helps prevent a small supplementary offering being repeated by different people without anyone realising. Record which tub size you use and roughly how long it lasts; that provides a practical basis for choosing between 400g and 800g next time.