sandbed
Aquarium floor layer
A sandbed is a layer or foundation of sand, typically prepared as a base for laying pavers, pipes, or other construction materials: We spread a sandbed before setting the flagstones.
In aquariums, a sandbed is the sandy substrate at the bottom of a tank, which can host beneficial bacteria and burrowing organisms.
Particles settling in liquid
- substrateUnderlying supporting material
- siltWaterborne earth particles
- gravelLoose small rock fragments
- clayMoldable earth for ceramics
streambed · seafloor · deposition · alluvial · delta · estuary · aquifer · stratum
Supporting bottom structure
- substrateUnderlying supporting material
- supportTo uphold or sustain
- underpinningFoundational support beneath
- footingSecure ground position
stability · leveling · compaction · subgrade · paving · pipeline · drainage · trench
Loose small rock fragments
- permeabilityAbility to transmit fluids
- sedimentationParticles settling in liquid
- backwashWater pushed back
- clarificationMaking meaning plain
effluent · particulates · multimedia · anthracite · adsorption · purification · treatment · biofilm
sediment
Particles settling in liquid
- substrateUnderlying supporting material
- siltWaterborne earth particles
- gravelLoose small rock fragments
clay · streambed · seafloor · deposition · alluvial · delta · estuary · aquifer · stratum · layer
base
Supporting bottom structure
- substrateUnderlying supporting material
- supportTo uphold or sustain
- underpinningFoundational support beneath
footing · stability · leveling · compaction · subgrade · paving · pipeline · drainage · trench · excavation
gravel
Loose small rock fragments
- permeabilityAbility to transmit fluids
- sedimentationParticles settling in liquid
- backwashWater pushed back
clarification · effluent · particulates · multimedia · anthracite · adsorption · purification · treatment · biofilm · turbidity
substrate
Underlying supporting material
filter · coral · reef · marine · freshwater · cichlid · burrowing · planting · aquascape · bottom-dweller
mold
Form-giving container
pattern · impression · pour · bronze · aluminum · iron · casting · flask · cope · drag
sandbedrocky bottom
Rock-covered underwater floor
bedrock · solid rock · boulder field · hardpan · bare rock
- sandbox gameUnstructured exploratory video game
- sandbox modeConsequence-free testing environment
- sandbox toysChildren's beach equipment
- sandbox playChildren's outdoor sand activity
- digital sandboxIsolated space for experimentation