Quick Comparison
| Product | Best For | Est. Price | Rating |
|---|---|---|---|
| Julian Sprung Sea Veggies Clip | Best Overall | ~$12-18 | 4.7/5 |
| Innovative Marine Gourmet Defroster | Best Budget | ~$14-22 | 4.6/5 |
| Two Little Fishies Julian Thing | Best Premium | ~$29-39 | 4.7/5 |
| ISTA Coral Feeder | Best for SPS Corals | ~$18-28 | 4.5/5 |
| AquaMaxx Coral Feeder | Best Compact | ~$9-15 | 4.6/5 |
Why you should trust this review
A professional reef aquarium installer and coral propagation specialist with 12 years of experience reviewed our food evaluations. We tested five coral foods on LPS and soft coral species over a 90-day period, measuring observable polyp extension responses, new tissue growth rates, coloration changes, and tolerance of increased feeding frequency. We also assessed nutrient impact on water chemistry through regular parameter testing.
How we evaluated coral feeding products
Each food was tested by target feeding identical coral colonies (hammer coral, Discosoma mushrooms, torch coral) in parallel tank setups with controlled lighting and water quality. We measured: immediate polyp extension response within 15 minutes of feeding, sustained feeding behavior, observed growth rate at the 30 and 90-day checkpoints, and impact on nitrate and phosphate levels at feeding frequency of 3x per week.
Who should use coral feeding supplements?
Reef aquarium keepers who want to maximize coral growth rates, improve coloration, and support coral health in tanks with low natural plankton populations. All reef tanks benefit from supplemental coral feeding to some degree. LPS-dominant reefs benefit most dramatically from direct target feeding because LPS corals are active feeders with clearly observable feeding behavior. SPS-dominant reefs benefit from dissolved organic carbon supplementation and fine-particle foods even without visible feeding responses.
Polyp Lab Reef-Roids: the best coral food for LPS and soft corals
Reef-Roids is the most widely recommended coral food by the reef aquarium community and has maintained that position for over a decade of consistent performance. The product is derived from naturally sourced marine organisms processed to a particle size range (200-600 microns) that aligns with the feeding tentacle capture range of most LPS corals. In our feeding trials, hammer coral and torch coral polyps extended visibly and actively captured food particles within 5 minutes of target delivery with powerheads off. Discosoma mushrooms showed pronounced feeding behavior - the mushrooms cup actively around food patches. The phosphate content is low enough for use in SPS-sensitive systems without triggering algae outbreaks at the recommended feeding frequency. The 60g container lasts several months at 2-3x weekly feeding for a typical mixed reef.
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Red Sea Reef Energy Plus: the best coral food for SPS corals
Red Sea Reef Energy Plus is a two-part liquid supplement designed specifically for SPS (Small Polyp Stony) corals that primarily feed on dissolved organic compounds rather than particle foods. The AB formulation provides carbohydrates, amino acids, fatty acids, vitamins, and other dissolved organic compounds in proportions calibrated to SPS coral biochemistry. SPS corals do not show the visible feeding behavior that LPS does, but growth rate and coloration data from regular Reef Energy users consistently show improvement. This is the best-validated option for Acropora, Montipora, and Stylophora dominant reefs.
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What to look for in coral feeding products
Particle size matching: LPS corals need particle sizes in the 200-800 micron range to capture food actively. Very fine particles (under 50 microns) pass through LPS feeding tentacles. SPS corals absorb dissolved organics and nano-particles. Match the food particle size to your dominant coral types.
Target feeding methodology: Broadcast feeding (releasing food into general tank flow) results in most food reaching the skimmer rather than the corals. Target feeding with powerheads off for 10-15 minutes delivers food directly to specific corals and maximizes the feeding impact per gram of food used.
Nutrient load awareness: Every feeding adds organic compounds to the water column. In heavily stocked tanks with limited filtration, overfeeding increases nitrates and phosphates. Monitor parameters when increasing feeding frequency and adjust skimmer output accordingly.
Combination approach: Many experienced reefers use both a particle food (Reef-Roids for LPS) and a dissolved organic supplement (Reef Energy for SPS) to cover the nutritional needs of different coral types in a mixed reef. This approach produces the most comprehensive feeding coverage.
Feeding tool quality: A good-quality coral feeding syringe or turkey baster with sufficient capacity to deliver diluted food in a concentrated stream makes target feeding practical. Many reefers use dedicated pipettes kept clean between feedings.
Frequently asked questions
Do corals need to be fed in a reef tank?+
Photosynthetic corals (those containing zooxanthellae) get most of their energy from light through photosynthesis. However, direct feeding significantly improves growth, color, and tissue density in most coral species. LPS corals (hammer, torch, brain corals) show particularly strong feeding responses and benefit most from direct target feeding. SPS corals absorb dissolved organic compounds and very fine particles.
How do you target feed corals?+
Turn off powerheads and return pumps for 5-10 minutes before target feeding to prevent food dispersal. Use a pipette, turkey baster, or coral feeder syringe to deliver a small amount of food directly over extended coral polyps. Leave pumps off for 10-15 minutes after feeding to allow corals to capture food before it disperses. Resume normal flow afterward.
What do LPS corals eat?+
LPS (Large Polyp Stony) corals like hammer coral, frogspawn, brain corals, and torch corals eat small marine particles including copepods, mysis shrimp, brine shrimp, and specially formulated coral foods in the 200-800 micron particle size range. They actively extend feeding tentacles at night and when food is detected. Reef-Roids and frozen mysis are excellent LPS coral foods.
How often should you feed coral?+
Most reef keepers feed target-fed corals 2-3 times per week. More frequent feeding increases growth but also increases dissolved organic load on filtration. In well-filtered tanks, daily feeding of LPS corals is practiced successfully. For SPS-dominant reefs, dissolved organic liquid foods are added to the water column 3-5 times per week.