Dr. Bassleer BioFish Food Matrine – Sophora-Enriched Granules for Natural Parasite Defense

Support your fish against parasites through their food.

External parasites are the nightmare every keeper dreads — and once they take hold, they spread fast.

Dr. Bassleer BioFish Food Matrine carries the valuable alkaloids matrine and oxymatrine from the plant Sophora flavescens, traditionally valued for their antiparasitic properties — coated onto German-made functional granules with no artificial colors or fillers. It's the definition of nutrition as a first line of defense.

Dr. Bassleer Matrine is functional health food, not ordinary fish food — developed by renowned fish-health expert Dr. Gerald Bassleer, who has spent 40+ years in fish health, and made in Germany by Aquarium Münster. The functional additives (probiotics, prebiotics and plant-based phytobiotics) are coated on after production at low temperature so the beneficial compounds are preserved, and there are no artificial colors or fillers. The guiding idea is simple: good nutrition is a fish's first line of defense against disease.

1. Feed 1–2 times a day, only what's eaten in a few minutes.
2. Work it into the rotation, especially after adding new fish.
3. Keep water quality high alongside feeding.

Make their food part of the defense. Add to cart.

Why Dr. Bassleer Matrine

• Matrine & oxymatrine: the valuable alkaloids from Sophora flavescens, traditionally valued for their antiparasitic properties, coated onto the granule to make food part of your fish's defense.
• Functional additives: probiotics, prebiotics and plant-based phytobiotics are coated on at low temperature after production, so the beneficial compounds stay intact rather than being cooked away.
• German-made quality: produced in Germany by Aquarium Münster with no artificial colors and no fillers — just functional nutrition.
• Easily digestible, clean water: the granules are easily digestible and low-waste, so they don't cloud your aquarium.

Best For

Tropical and cold-water aquarium fish when you want to support their natural defenses against external parasites — especially after adding new fish or during periods of parasite risk. Use Matrine in those situations and rotate it into a varied Dr. Bassleer diet alongside your daily staple rather than feeding it alone; keep water quality high at the same time.

Feeding

Feed once or twice daily, offering only what the fish eat within a few minutes, and remove any uneaten food. Choose the granule size (M/L/XL/XXL) to match the mouths of your fish so every one can take it comfortably.

Ingredients

Fish and fish derivatives, cereals, crustaceans, derivatives of vegetable origin, yeast, 2% Sophora flavescens (source of matrine & oxymatrine).

Guaranteed Analysis

• Crude Protein: 54%
• Crude Fat: 16%
• Crude Fibre: 6%
• Crude Ash: 10%

Added Vitamins & Actives

Vitamin A 7,500 IU/kg, Vitamin C 1,000 mg/kg, Vitamin D3 800 IU/kg, Vitamin E 400 mg/kg, astaxanthin 5 mg/kg; trace elements (zinc 110 mg, manganese 16 mg, copper 2 mg, iodine 1.2 mg per kg); probiotic Pediococcus acidilactici 3,000 CFU/mg. Signature: 2% Sophora flavescens.

Guaranteed analysis reflects the M granule; values may vary slightly by granule size and batch.

FAQ

Which granule size should I choose? Match the granule (M/L/XL/XXL) to your fish — smaller granules for small-mouthed community fish, larger for bigger cichlids and similar. The guaranteed analysis shown reflects the M granule and varies slightly by size and batch.

Will it cloud my water? No. The granules are easily digestible and low-waste, so they don't pollute or cloud the aquarium when you feed only what's eaten and remove the rest.

How often should I use it? Use Matrine when you want to support parasite defense — especially after adding new fish — rotating it into your feeding. It works best as part of a varied Dr. Bassleer diet alongside good water quality, not as a sole food.