In general, if a large enough environment is supplied with ample of coverage, sea horses and puffer fish can make peaceful tank mates but constant observing is always essential.
Do sea horses get along with puffer fish?
Sea horses and puffer fish can be compatible tank mates, provided the tank is large enough and there are plenty of hiding places. Puffer fish are territorial and can be aggressive towards other fish, so it is important to ensure that the sea horse has plenty of space to retreat to. Additionally, puffer fish are known to nip at the fins of other fish, so it is important to monitor the interaction between the two species carefully.