Lurk some pretty cool minibeasts - Sydney the Silver Water Beetle (Above) and Eddy the Emperor dragonfly nymph (below)

We’ve just restocked the aquarium at the South Essex RSPB Visitor Centre and we’ve got some amazing creatures for you to discover.

Sidney, as he is known to some of his friends, swims under the stage name of “Silver Water Beetle” or Hydrus piceus. He’s name is…