Spook cave fish are just a few of the fish that will look just like fish eggs, but will have different colours and colours.
Photo: David Mariuz/ABC NewsThe spook caving fish are found throughout the Northern Territory and can be found in lakes and rivers, including the northern Kimberley.
They are native to Australia and can range from small to large.
They were once widespread, but are now largely restricted to freshwater systems and are hunted for their flesh.
There are two main types of spook caves, and both require different things to make them work.
The northern species requires saltwater.
Spook cave fish can be caught with a rod or a lure, while the southern species requires water.
They also require a different type of rock, called a ‘rocktail’, which can also be used to make the fish look like an egg.
Dr Chris Pritchard, from the Northern Territorians National Fish Hatchery, said the spook rocktail needed to be large enough to trap the eggs, and it needed to hold up to a couple of hundred grams of salt.
“You have to find the right size rocktail and stick it into the water, and then when you get to the eggs it has to be able to hold that salt,” he said.
“And the eggshell has to have a very good quality to make it look like it’s an egg and not just a shell.”
It’s a hard job but the spooks are very resilient.
They can hold up for a long time and they will still work when the salt is high.
“Dr Pritich said he had never seen a spook hatch before.”
We’ve never seen it hatch in the Northern Territories before,” he told ABC News.”
This is a very unique fish.
It’s very unusual for any other freshwater fish, and the Northern Environment Department is hoping to find out why.
“The eggs will hatch in August and the fish will go on to the wild.