Nudibranchs in a marine aquarium.

This should be avoided unless you are very aware of the dangers of keeping these creatures as pets!

The Phyllidiidae nudibranchs are all toxic due to the feeding on poisons sponges and using these toxins a s their own protection.
These ones are the slowest of the nudibranchs and have a very tough exterior for defence as well.

The dendrodorididae nudibranchs are harmless to corals but have the ability to reproduce toxins even with out eating toxic sponges.
These are a risk to corals if stressed, but fine with a reasonable bio filter and just fish.

The Dendronotina and aeolidina nudibranchs are carnivores and the ones that may eat any form of corals and should be totally avoided!!

The doridoidea family is a carnivore and represent the most common types of nudibranch seen in the ocean and are relatively reef safe.
Most will not harm corals and predate on near anything else, each has its own reference on food types, so a diverse reef system will enable these to do well, but be vigilant and make sure the one you get doesn’t attack a type of coral.

Bubble snails feed on algae or worms and don’t harm corals, so they are reef safe.

The predator that represents the greatest risk to the nudibranch is sea stars and each other.

His is our thread on local nudis.

https://southeastqueenslandm.aforumfree.com/t1075-nudibranch-flat-worms-plakobranchidae

More to come