Best Sinking Food for Bottom Feeders (Cory, Pleco, Loach)
Bottom feeders starve on floating flakes. The best sinking wafers and pellets for corydoras, plecos and loaches, and how much to feed.
Bottom feeders need food that sinks before faster fish eat it. Hikari Sinking Wafers are the reliable staple for corydoras, plecos and loaches, holding together on the substrate so shy fish can graze. New Life Spectrum sinking pellets are an excellent all-fish option, and Fluval Bug Bites offer an insect-based alternative. Feed at night, after the lights go off, so nocturnal bottom feeders actually get their share.
| Product | Score | Nutritional Quality | Feeding Behaviour | Water Clarity Impact | Owner Satisfaction | Value | Buy |
|---|---|---|---|---|---|---|---|
| New Life Spectrum Regular (150 g) New Life Spectrum · premium | 88 | 100 | 100 | 100 | 79 | 64 | Buy → |
| Fluval Bug Bites Tropical Granules (1.6 oz) Fluval · budget | 91 | 95 | 100 | 95 | 82 | 87 | Buy → |
| Hikari Tropical Sinking Wafers (3.88 oz) Hikari · budget | 95 | 99 | 99 | 99 | 93 | 89 | Buy → |
Corydoras, plecos, loaches and other bottom dwellers share one problem: the food never reaches them. Floating flakes get eaten at the surface, and even slow-sinking pellets are snatched mid-water by faster fish. They need food built to sink.
Why floating food starves them
A common beginner mistake is assuming a bottom feeder will "clean up" whatever falls. In a busy community tank, very little falls, because the mid-water fish are efficient. Bottom feeders are not scavengers that thrive on scraps; they need their own dedicated, fast-sinking food or they slowly starve, however plump the tank looks from the front.
What to feed
- Hikari Sinking Wafers are the go-to staple: dense discs that drop straight to the substrate and hold together long enough for shy fish to graze without turning to mush.
- New Life Spectrum sinking pellets are a superb all-fish food that bottom feeders take readily, with the whole-fish ingredient quality that shows in color and health.
- Fluval Bug Bites bring an insect-protein option that many fish find highly palatable.
Plecos also need vegetable matter and, for the wood-eating species, a piece of driftwood to rasp: wafers alone are not a complete pleco diet.
Feed at night
The single best trick for bottom feeders is to feed after the lights go off. Many are nocturnal and only come out to forage in the dark, and lights-out also removes the mid-water competition. Drop a wafer or two near their hiding spots as the last thing you do at night.
Don't overfeed
Sinking food is easy to over-supply because you cannot see it vanish. Feed only what is gone within a few hours, and remove any uneaten wafer before it fouls the substrate. See the full fish food rankings and, for picky species, the picky-eater guide.
Hikari Sinking Wafers are the dependable staple for bottom feeders because they sink fast and hold together while shy fish graze. Feed them after lights-out so corydoras, loaches and plecos are not out-competed by faster mid-water fish.
Common questions
Why do bottom feeders need special food?
Corydoras, plecos and loaches feed on the bottom, and faster mid-water fish grab floating flakes before they sink. A dense sinking wafer or pellet reaches the substrate so shy bottom dwellers actually get fed.
How much should I feed bottom feeders?
A small amount they finish within a couple of hours, usually in the evening when many are active. Bottom feeders are not tank cleaners and will starve on leftovers alone, so feed them deliberately without overfeeding.
Do plecos and corydoras eat the same sinking food?
Largely, though diets differ: many plecos want more vegetable matter, and some need driftwood to graze, while corydoras take a protein-rich sinking wafer or pellet. A quality sinking staple suits both, supplemented for species with special needs.