Guppies will eat almost anything you throw in the tank. That does not mean you should feed them anything. The difference between a guppy that looks washed out and one that shows deep, saturated color often comes down to diet — specifically, protein content, carotenoid sources, and pellet size.
After keeping guppy colonies for years, I have settled on a few foods that consistently produce the best color, growth, and breeding activity. Every product on this list uses real protein sources (not filler-heavy formulas), and all of them are sized appropriately for guppy mouths.
Quick Picks
- Best Overall: Hikari Fancy Guppy — purpose-built for guppies, spirulina for color, micro pellet size
- Best for Color: Ultra Fresh Royal Guppy Mignon — whole sword prawns and spirulina deliver intense color enhancement
- Best Protein Source: Fluval Bug Bites Tropical — black soldier fly larvae provide sustainable, high-quality protein
- Best Slow-Sinking: Xtreme Aquatic Nano — 50% protein, 0.5mm pellets that sink slowly through the water column
- Best Clean Ingredients: Northfin Community Formula — no fillers, no artificial colors, whole proteins only
Detailed Reviews
1. Hikari Fancy Guppy
Hikari Fancy Guppy
Best Overall- ✓ Specifically formulated for guppies and small livebearers
- ✓ Micro pellet size is perfect for guppy mouths
- ✓ Contains spirulina for color enhancement
- ✓ Low waste formula keeps water cleaner
- ✗ Small container runs out fast with larger colonies
- ✗ Price per ounce is higher than bulk options
Hikari has been making fish food for decades, and the Fancy Guppy formula is one of their most targeted products. The micro pellets are sized specifically for guppy and endler mouths — small enough that even juvenile fish can eat them without struggling.
The formula centers on fish meal and krill with spirulina added for color enhancement. At 42% protein, it sits in the sweet spot for adult guppies — high enough to support breeding females and growing fry without the excess that leads to water quality issues.
What I appreciate most is the low-waste design. These pellets hold together in water longer than most flake foods, which means less uneaten food breaking down on the substrate. In a guppy breeding tank where you might have 30-50 fish at various life stages, that matters.
The downside is container size. The 0.77 oz package is small, and if you are feeding a colony daily, you will burn through it in a few weeks. Buying the multi-pack is more economical.
Best for: Hobbyists who want a purpose-built guppy food with proven results.
2. Ultra Fresh Royal Guppy Mignon Pellet
Ultra Fresh Royal Guppy Mignon Pellet
Best for Color- ✓ Whole sword prawns provide natural color enhancement
- ✓ High protein content supports growth and breeding
- ✓ Pellets are soft enough for even juvenile guppies
- ✓ Minimal water clouding compared to flake foods
- ✗ Premium price point
- ✗ Pellets can crumble if container is not sealed properly
Ultra Fresh built this food around whole sword prawns, and you can tell. Guppies that eat this regularly develop noticeably deeper reds and oranges within a few weeks. The carotenoids in the shrimp are natural color enhancers — no artificial dyes involved.
At 46% protein with spirulina and seaweed in the mix, this is a nutrient-dense food that supports both growth and color development. The pellets are soft enough that even young guppies can break them apart, and they sink slowly, giving fish throughout the water column a chance to feed.
The main drawback is price. This is a premium food, and the 1.87 oz container is not cheap. For a single display tank with a dozen guppies, the cost is manageable. For a breeding operation with multiple tanks, you might want to use this as a supplement rather than a staple.
Best for: Show guppies and display tanks where color intensity is the priority.
3. Fluval Bug Bites Tropical Granules
Fluval Bug Bites Tropical Granules
Best Protein Source- ✓ Black soldier fly larvae is a sustainable protein source
- ✓ High protein promotes strong growth in fry and adults
- ✓ Small granule size works for guppies and endlers
- ✓ Widely available and competitively priced
- ✗ Not guppy-specific — general tropical formula
- ✗ Some batches have inconsistent granule sizes
Fluval Bug Bites changed the game when they introduced black soldier fly larvae as a primary protein source. These insects are nutritionally dense, sustainable to produce, and guppies eat them with obvious enthusiasm.
The tropical granule formula is not guppy-specific, but the small granule size works well for guppies and endlers. At 45% protein with salmon as a secondary ingredient, the nutritional profile is strong. The granules sink slowly, which suits guppies that tend to feed in the upper and middle portions of the water column.
One issue to watch for: granule size can be inconsistent between batches. Some containers have granules that are fine enough for guppy fry, while others skew larger. For fry under two weeks old, you may want to crush the granules between your fingers before feeding.
Best for: Hobbyists who want high-protein food at a reasonable price point.
4. Xtreme Aquatic Foods Nano
Xtreme Aquatic Foods Nano
Best Slow-Sinking- ✓ 0.5mm pellets are the perfect size for guppies
- ✓ 50% protein is among the highest available
- ✓ Slow-sinking gives mid-water feeders time to eat
- ✓ Large container lasts months even with daily feeding
- ✗ Higher upfront cost than flake options
- ✗ Dark pellets can be hard to see against dark substrate
Xtreme is a brand that serious breeders know well, even if casual hobbyists have never heard of it. The Nano formula packs 50% protein into a 0.5mm slow-sinking pellet — the highest protein content on this list.
The ingredient list reads like a seafood menu: krill, herring, squid, and spirulina. These are real protein sources, not cheap fillers padded with wheat and soy. The result is a food that supports rapid growth in fry and helps breeding females recover quickly between drops.
The slow-sinking action is particularly useful in guppy tanks. Rather than floating on the surface where only the most aggressive feeders get food, these pellets drift through the water column, giving shy fish and mid-level feeders a fair shot.
The 3.5 oz container lasts significantly longer than most guppy foods, which helps justify the higher price tag.
Best for: Breeders focused on maximizing growth rates and protein intake.
5. Northfin Community Formula
Northfin Community Formula
Best Clean Ingredients- ✓ No fillers, artificial colors, or preservatives
- ✓ Clean ingredient list with whole proteins listed first
- ✓ 0.5mm pellet is ideal for small mouths
- ✓ Canadian-made with strict quality control
- ✗ Plain packaging makes it hard to find in stores
- ✗ Pellets are quite hard — some guppies take time to accept them
Northfin takes a no-nonsense approach to fish food. The ingredient list is short, clean, and starts with whole Antarctic krill. There are no artificial colors, no preservatives, and no filler ingredients. What you see on the label is what your fish eat.
The 0.5mm pellet size is ideal for guppies, and the slow-sinking action works well in community setups. At 44% protein, the formula supports healthy growth without being so protein-heavy that it stresses your biofilter.
The pellets are harder than some competitors, which means less water clouding but also a short adjustment period for some fish. Guppies that are used to flakes may ignore Northfin pellets for a day or two before accepting them. Once they do, they eat them readily.
Best for: Hobbyists who prioritize clean ingredients and minimal fillers.
Comparison Table
| Hikari Fancy Guppy Best Overall | Ultra Fresh Royal Guppy Mignon Pellet Best for Color | Fluval Bug Bites Tropical Granules Best Protein Source | Xtreme Aquatic Foods Nano Best Slow-Sinking | Northfin Community Formula Best Clean Ingredients | |
|---|---|---|---|---|---|
| Rating | 9.3/10 | 9/10 | 8.8/10 | 8.6/10 | 8.4/10 |
| Price | $5-$11 | $13-$16 | $5-$8 | $12-$18 | $8-$12 |
| Type | Semi-floating micro pellet | Slow-sinking micro pellet | Slow-sinking granule | Slow-sinking 0.5mm pellet | Slow-sinking 0.5mm pellet |
| Protein | 42% | 46% | 45% | 50% | 44% |
| Size | 0.77 oz (22g) | 1.87 oz (53g) | 1.6 oz (45g) | 3.5 oz (99g) | 100g |
| Key Ingredients | Fish meal, krill, spirulina | Sword prawns, spirulina, seaweed | Black soldier fly larvae, salmon, fish protein | Krill, herring, squid, spirulina | Whole Antarctic krill, herring, wheat flour |
Guppy Food Buying Guide
Pellets vs. Flakes
Flakes were the standard guppy food for decades, but pellets have overtaken them for good reasons. Pellets hold together in water, which means less waste breaking down on the substrate and cleaner water between changes. They also deliver a more consistent nutritional dose per feeding — with flakes, the amount your fish actually eat varies widely.
That said, flakes still have a place. They are easy to crush for fry feeding, and some guppies raised on flakes are reluctant to switch to pellets. If your fish prefer flakes, you can still get good results — just choose a high-quality flake with protein listed as the first ingredient.
What Protein Content Should You Look For?
For adult guppies, aim for 40-50% protein. Foods in this range support color development, breeding activity, and healthy growth without excess waste. Fry benefit from even higher protein (50%+), which is why many breeders supplement with baby brine shrimp or crushed high-protein pellets.
Avoid foods where the first ingredient is wheat flour, soy, or corn. These are cheap fillers that pass through fish without providing much nutrition.
Color Enhancement
Natural color enhancers like spirulina, astaxanthin, and carotenoid-rich shrimp are far more effective than artificial dyes. Foods containing whole krill, shrimp, or spirulina will gradually intensify reds, oranges, and yellows over a few weeks of consistent feeding.
Do not expect overnight results. Color enhancement through diet is a gradual process that takes 2-4 weeks of daily feeding to become noticeable.
Feeding Schedule
Feed guppies 2-3 times daily, offering only what they can consume in 2-3 minutes. Overfeeding is the most common mistake — excess food breaks down, spikes ammonia, and stresses your colony. In breeding tanks with fry, more frequent small feedings (4-5 times daily) produce faster growth.
Frequently Asked Questions
How often should I feed my guppies?
Two to three times per day for adults, with each feeding lasting about 2-3 minutes. For fry, increase to 4-5 small feedings daily to support rapid growth. Remove any uneaten food after 5 minutes to prevent water quality issues.
Can I feed guppies betta food?
In a pinch, yes. Betta food is protein-rich and similarly sized. However, betta foods often lack the spirulina and carotenoid sources that enhance guppy coloration. Use it as a temporary substitute, not a long-term staple.
Do guppies need live food?
Guppies do not strictly need live food, but they benefit from it. Baby brine shrimp, daphnia, and micro worms provide excellent nutrition and stimulate natural feeding behavior. Many breeders feed live food 2-3 times per week as a supplement to pellets or flakes.
What food makes guppies more colorful?
Foods containing spirulina, astaxanthin, whole krill, and whole shrimp are the most effective natural color enhancers. The Ultra Fresh Royal Guppy Mignon and Hikari Fancy Guppy both contain these ingredients. Consistent feeding over 2-4 weeks produces visible color improvement.
Is it okay to feed guppies only one type of food?
A single high-quality pellet food can meet all of a guppy’s nutritional needs. However, variety keeps fish interested and ensures a broader nutritional profile. Rotating between two or three foods, with occasional live food supplementation, produces the best results.
How long can guppies go without food?
Healthy adult guppies can survive 1-2 weeks without food, though this is stressful and not recommended. For vacations of a few days, simply skip feeding — it is safer than using vacation feeder blocks, which can cloud water and crash your parameters.
Conclusion
For most guppy keepers, the Hikari Fancy Guppy is the best all-around choice. It is purpose-built for guppies, reasonably priced, and consistently produces good color and growth. If color is your top priority — especially for show-quality fish — upgrade to the Ultra Fresh Royal Guppy Mignon for its superior carotenoid content.
Breeders running multiple tanks should consider the Xtreme Aquatic Nano for its high protein content and larger container size. And if clean, no-filler ingredients matter most to you, Northfin Community Formula is hard to beat.
The best approach is to keep two or three of these on hand and rotate. Your guppies will thank you with brighter colors and more active breeding.