Ghost Shrimp are semi-translucent shrimp that are often added to fish tanks as an interesting species addition or used as bait by fishermen. These shrimp love to burrow into the ground and are most often found in freshwater environments, but can also be found in saltwater and brackish water (like estuaries). The ghost shrimp burrows almost constantly in order to find enough food to eat. To collect them for bait, fishermen use a plunger to suck them out of their burrows, and other small animals may use their burrows for protection as well, such as pea crabs. Ghost shrimp are capable of surviving without oxygen for up to 6 days. Ghost Shrimp are semi-translucent shrimp that are often added to fish tanks as an interesting species addition or used as bait by fishermen. These shrimp love to burrow into the ground and are most often found in freshwater environments, but can also be found in saltwater and brackish water (like estuaries). The ghost shrimp burrows almost constantly in order to find enough food to eat. To collect them for bait, fishermen use a plunger to suck them out of their burrows, and other small animals may use their burrows for protection as well, such as pea crabs. Ghost shrimp are capable of surviving without oxygen for up to 6 days.