Yes minimum tank size.
Carpet anemone eats tang.
In the home aquarium they can also serve as host for amphiprion.
This anemone serves as a host for many types of clownfish in the wild including.
I bought a green haddoni carpet anemone was my lfs i kept eyeing it for about 2 months every time i went in i kept seeing this large haddoni carpet at the time i didn t even know what it was it was hosting a large maroon clown i thought it was just the most beautiful thing i had ever seen finally i shelled out 100 bucks to buy it like i said it was large my 125 gallon reef tank was.
When healthy this anemone is very sticky to the touch and when they grasp something or someone it is very difficult to convince it to let go without damaging the animal.
Most anemones are sessile with a specialized foot used to anchor them in soft substrates or attach themselves to rocks and corals.
Use caution when introducing anemones into a reef aquarium however as some species are quite mobile and may sting and damage live corals.
They are small shrimps getting to about 1 25 2 5 inches 3 6 cm in length.
20 gal max size.
Periclemenes anemone shrimps are infrequently traded but interesting tankmates that live in a symbiotic relationship with carpet anemones presumably for protection.