Target feeding sounds more technical than it is — it's mostly "get a small, appropriately sized piece of food onto the coral's polyps before the current carries it away," repeated until you've got a feel for what works for your specific corals.
Short Answer
Target feeding means placing food directly onto or near a coral's extended polyps, using a tool like a turkey baster, pipette, syringe, or feeding stick — rather than broadcasting food into the water for the whole tank. As covered in our overview of how corals eat, captured prey is one of several feeding pathways corals use, and target feeding is how keepers make that pathway reliable for a specific coral rather than leaving it to chance. The core technique is consistent across species: wait for extended polyps, reduce flow, place appropriately sized food directly on the coral, and watch for capture — with portion sizes and frequency adjusted based on what's actually consumed.
Why Target Feed at All?
Broadcast feeding — adding food to the water column for the tank generally — works fine for fish and many other inhabitants, but as discussed in our overview of how corals eat, a coral's ability to capture prey depends on its tentacles being in the right place at the right time. In a larger tank, or one with significant flow, food broadcast elsewhere may simply never reach a particular coral's capture radius. Target feeding solves this directly by bringing food to the coral, which is particularly relevant for corals where direct feeding is associated with better growth and coloration — our hammer coral feeding guide covers this for one widely kept LPS genus, but the underlying logic extends to many corals.
Choosing and Sizing Food
Commonly used foods include:
- Mysis shrimp — whole or chopped, depending on polyp size
- Other chopped meaty foods
- Reef-specific pellet or frozen foods formulated for corals and filter feeders
The key principle is matching food size to the coral's polyps. A piece that's too large relative to the polyps can be difficult to capture or process — similar to the oversized-food issue discussed for anemones, where portions that are too big can lead to regurgitation rather than successful feeding. Corals with small polyps generally need finely chopped or particulate foods; corals with larger polyps, like many hammer or torch corals, can often take whole mysis or similarly sized pieces.
The Technique: Timing, Tools, and Flow
- Wait for extended polyps — timing varies by species and tank; some corals extend more during low-light periods, though not universally
- Reduce flow temporarily in the feeding area so food doesn't immediately drift away
- Place food directly onto or very near extended polyps, using a turkey baster, pipette, syringe, or feeding stick/tongs appropriate to the food and coral size
- Watch for capture — polyps closing around the food and tentacles drawing inward toward the coral's center indicate successful feeding
If food keeps drifting away uncaptured, the usual fixes are reducing flow further, placing food more directly on the polyps, or feeding when polyps are more reliably extended.
Feeding Multiple Corals Without Overfeeding the Tank
The main downside of feeding too much is generally not direct harm to the coral — it's uneaten food breaking down and affecting water quality, the same concern covered in our hammer coral feeding guide. For tanks with several corals being target-fed:
- Start with smaller portions than you think you need, and observe how much each coral actually captures
- Feed in a deliberate order or pattern rather than scattering food broadly, so you have a sense of total food going into the system
- Adjust based on observation over several feeding sessions — what's consumed vs. what drifts away uneaten
Starting conservative and adjusting from there tends to work better than estimating an amount upfront, especially in a tank with multiple corals that may each respond differently to the same feeding session.
Quick Reference
- Target feeding means placing food directly on a coral's extended polyps, not broadcasting it tank-wide
- Match food size to polyp size — mysis, chopped meaty foods, and reef pellets/frozen foods are common choices
- Feed when polyps are extended, with flow temporarily reduced
- Use a turkey baster, pipette, syringe, or feeding stick to place food precisely
- Polyps closing around food and tentacles drawing inward signal successful capture
- Uneaten food affects water quality more than it harms the coral directly
- Start with smaller portions and adjust based on what's actually consumed