Kordon Methylene Blue Disease Preventative
Safe for Freshwater & Saltwater Aquariums, Prevents Fungal Infections & Treats Parasites, Reduces Fish…
Price as of 2026-06-20. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Those who want a top-rated option — in the top 9% of medication and health supplies by rating
- •SunGrow Shrimp Rocks — 57% cheaper at $7 (Score A)
📊 Based on data analysis of 64 products in this category.
Mubboo Score: A-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other medication and health supplies
Computed from live Amazon rating, review count, and price across 64 medication and health supplies · last refreshed 2026-06-20.
How It Compares
This Product Kordon Methylene Blue Disease Preventative | Most Popular API MELAFIX Freshwater Fish Bacterial Infection Remedy | Best Rated Fluval Shrimp Granules | Best Value SunGrow Shrimp Rocks | |
|---|---|---|---|---|
| Price | $14.98 | $8.18 | $11.99 | $6.50 |
| Rating | 4.7/5 | 4.5/5 | 4.6/5 | 4.4/5 |
| Reviews | 3,763 | 15,199 | 2,170 | 2,669 |
| Mubboo Score | A- | A+ | A- | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Use a hospital tank when medicating fish to protect plants and invertebrates, and research fasting requirements as instructions may omit this important step.
- Effective treatment and healing
- Fast improvement
- Good value
- Fish enjoy the product
- Missing or incomplete instructions
- Harms invertebrates and plants
- Staining or strong odor
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About Kordon
- 3 products in our database
- Average rating: 4.3/5 across all products
- Price range: $13.34 – $68.15
- Categories: medication-and-health-supplies
Other medication and health supplies
Bottom Line
Kordon Methylene Blue Disease Preventative earns Mubboo Score A-. Priced at $15 — a mid-range option, below the category average of $29. Rated 4.7/5 from 3,763+ reviews. Strong buy if: those who want a top-rated option.
Frequently Asked Questions
Is the Kordon Methylene Blue Disease Preventative worth buying in 2026?
It earns a Mubboo Score of A-, with a 4.7/5 rating from 3,763 reviews — better than 91% of medication and health supplies we track.
How much does the Kordon Methylene Blue Disease Preventative cost?
It is currently $14.98 — mid-tier pricing for medication and health supplies.
How does the Methylene Blue Disease Preventative compare to other medication and health supplies?
The category's most-reviewed alternative is the API MELAFIX Freshwater Fish Bacterial Infection Remedy (4.5/5, 15,199 reviews, $8.18). The Methylene Blue Disease Preventative carries a Mubboo Score of A- vs A+.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-20) and may change.