Tetra 3 Gallon Half Moon Fish Tank
Price as of 2026-06-05. Check Amazon for the current price.
Quick Decision
Price Intelligence
Currently $55.99 — the 90-day average is $45.30.
All-time low: $34.20 on Tue Dec 02 (from 181 price checks).
- Budget:$7–$56
- Mid-range:$56–$188← You are here
- Premium:$188+
Is This Right For You?
- •Budget-conscious shoppers — priced below 74% of Aquariums
- •Risk-averse buyers — 19,544+ reviews give a highly reliable picture
- •Tetra loyalists — the brand spans 51 products in our database
- •Rating sits in the bottom 19% of Aquariums — higher-rated options exist
- •Koller Products 3-Gallon 360 Aquarium offers a better rating (4.3/5) at a similar or lower price ($48)
- •NICREW 2.5 Gallon Nano Nature Aquarium Kit — higher rated at 4.6/5 ($57)
📊 Based on data analysis of 69 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 Aquariums
Computed from live Amazon rating, review count, and price across 69 Aquariums available to US consumers · last refreshed 2026-06-05.
How It Compares
This Product Tetra 3 Gallon Half Moon Fish Tank | Most Popular Tetra Aquarium | Best Rated NICREW 2.5 Gallon Nano Nature Aquarium Kit | Best Value Koller Products 3-Gallon 360 Aquarium | |
|---|---|---|---|---|
| Price | $55.99 | $119.14 | $56.99 | $47.99 |
| Rating | 4.1/5 | 4.3/5 | 4.6/5 | 4.3/5 |
| Reviews | 19,544 | 3,777 | 804 | 1,052 |
| Mubboo Score | A | B+ | A- | A- |
Quick Specs
- Color
- Clear,Yellow,Blue,Green,Red
- Shape
- Semicircular
- Style
- General
- Material
- Acrylic
- Pet Type
- Fish
- Set Name
- General
- Item Shape
- Semicircular
- Unit Count
- 1 Count
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Check filter quality and consider a replacement; ensure the tank size suits your fish; budget for additional equipment like a heater.
- Effective for fish health and water quality management
- Good value for money
- Attractive design and aesthetics
- Quiet operation
- Ease of use and setup
- Poor filter design and quality
- Durability and build quality issues
- Lighting problems
- Limited size and space for fish
Related Video Reviews
- 📹 I reviewed Fish Tanks at a COMPETITION — Fish For Thought
Key Features
- ✦AQUARIUM KIT: Half-moon shape allows 180-degree panoramic viewing – starter kit has everything you need.
- ✦BUBBLE CURTAIN: Bubbling disc automatically cycles through a rainbow of LED light colors.
- ✦INCLUDES FILTER: Includes air pump-driven Tetra Whisper Internal Power Filter to keep your tank clean and provide a healthy environment for pet fish.
- ✦AIR PUMP: Drives both the bubbling disc and the filter.
- ✦CONVENIENT: Clear canopy has a hole for easy feeding.
Source: product listing on Amazon.
About Tetra
- 51 products in our database
- Average rating: 4.6/5 across all products
- Price range: $2.99 – $451.99
- Categories: Aquarium Air Pumps, Aquarium Filters, Aquarium Heaters, Aquariums, food-pet, medication-and-health-supplies
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Featured in Our Reviews
Bottom Line
Tetra 3 Gallon Half Moon Fish Tank earns Mubboo Score A. At $56 it's above the 90-day average of $45 — waiting for a dip may pay off. Rated 4.1/5 from 19,544+ reviews. Strong buy if: budget-conscious shoppers, risk-averse buyers. Skip if: rating sits in the bottom 19% of aquariums — Tetra Aquarium (Score B+, $119) may fit better.
Frequently Asked Questions
Is the Tetra 3 Gallon Half Moon Fish Tank worth buying in 2026?
It earns a Mubboo Score of A, with a 4.1/5 rating from 19,544 reviews — better than 19% of Aquariums we track.
How much does the Tetra 3 Gallon Half Moon Fish Tank cost?
It is currently $55.99. The 90-day average is $45.30 and the all-time low we recorded is $34.20.
How does the 3 Gallon Half Moon Fish Tank compare to other Aquariums?
The category's most-reviewed alternative is the Tetra Aquarium (4.3/5, 3,777 reviews, $119.14). The 3 Gallon Half Moon Fish Tank carries a Mubboo Score of A vs B+.
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 (2026-06-05) and may change.