CrystalClear Knockout Plus All Natural Fish Treatment
1 Gallon
Price as of 2026-06-20. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$4–$13
- Mid-range:$13–$29
- Premium:$29+← You are here
Is This Right For You?
- •Buyers who prioritize quality over price in medication and health supplies
- •You're on a tight budget — $43 above the category average of $29
- •Rating sits in the bottom 9% of medication and health supplies — higher-rated options exist
- •API MELAFIX Freshwater Fish Bacterial Infection Remedy offers a better rating (4.5/5) at a similar or lower price ($8)
- •Tetra Ick Guard 8 Count — 93% cheaper at $5 (Score A)
- •Kordon Methylene Blue Disease Preventative — higher rated at 4.7/5 ($15)
📊 Based on data analysis of 64 products in this category.
Mubboo Score: C
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 available to US consumers · last refreshed 2026-06-20.
How It Compares
This Product CrystalClear Knockout Plus All Natural Fish Treatment | Most Popular API MELAFIX Freshwater Fish Bacterial Infection Remedy | Best Rated Kordon Methylene Blue Disease Preventative | Best Value Tetra Ick Guard 8 Count | |
|---|---|---|---|---|
| Price | $71.99 | $8.18 | $14.98 | $4.99 |
| Rating | 4.1/5 | 4.5/5 | 4.7/5 | 4.5/5 |
| Reviews | 175 | 15,199 | 3,763 | 1,840 |
| Mubboo Score | C | A+ | B+ | 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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Bottom Line
CrystalClear Knockout Plus All Natural Fish Treatment earns Mubboo Score C. Priced at $72 — a premium option, above the category average of $29. Rated 4.1/5 from 175+ reviews. Strong buy if: buyers who prioritize quality over price in medication and health supplies. Skip if: you're on a tight budget — API MELAFIX Freshwater Fish Bacterial Infection Remedy (Score A+, $8) may fit better.
Frequently Asked Questions
Is the CrystalClear Knockout Plus All Natural Fish Treatment worth buying in 2026?
It earns a Mubboo Score of C, with a 4.1/5 rating from 175 reviews — better than 9% of medication and health supplies we track.
How much does the CrystalClear Knockout Plus All Natural Fish Treatment cost?
It is currently $71.99 — premium-tier pricing for medication and health supplies.
How does the Knockout Plus All Natural Fish Treatment 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 Knockout Plus All Natural Fish Treatment carries a Mubboo Score of C vs A+.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
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.