Bassleer Biofish

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Bassleer Biofish The company is developer of DR. BASSLEER BIOFISH FOOD. More to see or learn about fish diseases in his books or on Youtube or Patreon International consultancy

Dr. Gerald Bassleer has retired and does currently limited Consulting Fish Health Management as Flying Fish Doctor.

Sampling for more correct diagnosis= get your training:
13/10/2026

Sampling for more correct diagnosis= get your training:

A fish that dies overnight can still answer the question that cost you the fish - but only if the sample reaches the laboratory in usable co

Fish mortality? You loose fish? How to prevent further losses?
07/10/2026

Fish mortality? You loose fish? How to prevent further losses?

Fish mortality rarely has one cause. Learn how to assess water, oxygen, disease, toxins, and handling before losses spread through your system quickly.

Best Parasite treatments start with correct diagnosis!When fish show signs of illness, the fastest route to recovery is ...
07/10/2026

Best Parasite treatments start with correct diagnosis!
When fish show signs of illness, the fastest route to recovery is not guessing—it’s accurate diagnosis. This article explains how to distinguish common parasites, avoid ineffective treatments, and choose a response that protects fish welfare and water quality. Better outcomes begin with informed observation, disciplined assessment, and prevention built into everyday care.

A fish that flashes against décor, clamps its fins, breathes hard, or isolates itself is giving you diagnostic information. The best fish pa

Betta Popeye Recovery: A Practical Treatment plan.A betta with a swollen, protruding eye needs more than a quick dose of...
05/10/2026

Betta Popeye Recovery: A Practical Treatment plan.

A betta with a swollen, protruding eye needs more than a quick dose of medication. Betta popeye recovery depends on whether the swelling began with an injury, poor water quality, a localized infection, or a more serious internal disease. The eye may look alarming, but the correct response is methodical: assess the fish, stabilize its environment, identify the likely cause, and watch closely for change.

Popeye is the common name for exophthalmia, meaning abnormal protrusion of one or both eyes. It is a visible symptom, not a diagnosis. Treating every case the same way is one of the main reasons recovery is delayed.

Betta popeye recovery depends on finding the cause fast. Learn how to assess eye swelling, correct water conditions, treat safely, and track healing daily.

Parasitic or bacterial infection in our ornamental fish? How? What?
03/10/2026

Parasitic or bacterial infection in our ornamental fish? How? What?

Learn how parasites versus bacterial infections differ in fish and how to build a safer, evidence-based diagnostic plan at home before treating sick fish.

Are antibiotics safe to use for our fish in our aquarium or pond?
27/09/2026

Are antibiotics safe to use for our fish in our aquarium or pond?

Are antibiotics safe for fish? Learn when treatment is justified, how to protect filtration, and why diagnosis and dosage determine the outcome safely.

Fish Health Subscriptions for Better Care!A fish that stops feeding, isolates from the group, or develops a faint change...
22/09/2026

Fish Health Subscriptions for Better Care!
A fish that stops feeding, isolates from the group, or develops a faint change in skin color has already provided useful diagnostic information. The difficulty is knowing what to observe next, which causes are plausible, and when a quick response may create a larger problem. Fish health subscriptions are designed to replace guesswork with a repeatable process for observation, diagnosis, prevention, and care.

A fish that stops feeding, isolates from the group, or develops a faint change in skin color has already provided useful diagnostic informat

DROPSY? SWOLLEN BELLY? CONSTIPATION? Is your fish swollen, pineconing, or “plugged up,” and you’re not sure whether it’s...
19/09/2026

DROPSY? SWOLLEN BELLY? CONSTIPATION? Is your fish swollen, pineconing, or “plugged up,” and you’re not sure whether it’s dropsy or constipation? These two conditions can look disturbingly similar at first glance, but the diagnosis changes the treatment—and the outcome. In our latest guide, we break down the key visual differences, what to check right away, and how to respond with the right level of urgency using diagnostic tools. Get the clarity you need to stop guessing and act like a pro when it matters most.

Learn how to tell dropsy vs constipation in fish apart, assess warning signs, correct water issues, and respond safely before a swollen fish declines.

If you’re tired of guessing why a tank suddenly goes off—this is the kind of diagnostic framework that changes everythin...
18/09/2026

If you’re tired of guessing why a tank suddenly goes off—this is the kind of diagnostic framework that changes everything. This handbook shows how a marine aquarium diagnosis system works in real time: matching visible symptoms to likely causes, separating look-alikes, and steering you toward treatments that actually align with the underlying issue. Expect practical, photo-supported guidance and a clear path from observation to informed action, designed for serious keepers who can’t afford misdiagnosis. For anyone managing livestock health professionally, it’s the difference between reacting and diagnosing.

A marine aquarium diagnosis handbook helps you read symptoms, test the system, separate look-alike diseases, and act before losses spread through tanks.

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Achter De Wereld, 1
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2230

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Maandag 08:00 - 17:00
Dinsdag 08:00 - 17:00
Woensdag 08:00 - 17:00
Donderdag 08:00 - 17:00
Vrijdag 08:00 - 17:00

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