Short-snouted Seahorse Hippocampus hippocampus
Short-snouted seahorses are found in shallow waters, often in estuaries or associated with seagrass meadows. They don't have teeth and simply suck up their favourite prey of small shrimp and plankton. They are usually brownish in colour and lack the fleshy "mane" seen in the Spiny Seahorse. Image: Hans Hillewaert (Flickr).
Find out more: Suffolk Wildlife Trust, iNaturalist, Marine Life Information Centre