What the heck is this?
- Thread starter nibes
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That's a solitary tunicate - a harmless filter feeder; no need to treat it at all (though you can offer it some phytoplankton if you want to try and help it do well).
Tired
2500 Club Member
Oo, very nice! Tunicates tend to shrink up and disappear eventually for lack of food in most reef tanks, particularly newer ones, though I did have one that lived for a few years until a tank crash took it out. Hopefully yours does well.
Fun fact: tunicates, AKA sea squirts, are our closest non-vertebrate relatives. They have a primitive notochord as a baby, a bit like our spinal cords. Baby sea squirts are sort of like boneless tadpoles, little wiggling things with organs and brains and all, and then as adults they glue their heads to surfaces and turn into strange bags. They lose the brain and notochord, as those are expensive to maintain and not needed for an animal doing a decent mimicry of a sponge.
Fun fact: tunicates, AKA sea squirts, are our closest non-vertebrate relatives. They have a primitive notochord as a baby, a bit like our spinal cords. Baby sea squirts are sort of like boneless tadpoles, little wiggling things with organs and brains and all, and then as adults they glue their heads to surfaces and turn into strange bags. They lose the brain and notochord, as those are expensive to maintain and not needed for an animal doing a decent mimicry of a sponge.
Reefkeepers Archive
2500 Club Member
I have soo many in my system. In fact some of them are starting to cover my coral
though I have the transparent species. Helps that I feed phyto every other day
You're good
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