Anemone health check..

amoeba2006 · Mar 2, 2026

This is my green bubble tip anemone. ( its diameter is about 6 cm).

The tank is is about 60 litres and only houses this anemone, a tiger serpent brittle star and one turbo snail. In the initial phase my nitrates used to be around 25 ppm..after a hair algae out break , and adding chaeto to the system they have become undetectable ( as per the Salifert test kit)

I have had it for 8 months now. Initially it was growing rapidly and now its growth has stopped.

Since it is so high on the glass..I fear it is not getting enough PAR, so I am feeding it more frequently..(one third block of hikari mysis every alternate day, and a snall piece of grocery store shrimp twice every week). It seems to accept the food, and never spits it out.

Am I doing everything correctly? Is he healthy? Also is he bleached in any way? And is there a method I can increase the zooxanthellae concnetration ?

[ The rock is purple due to some weird optical effects in the camera...the colour of the anemone seems unchanged.]

TX_REEF · Mar 2, 2026

it looks healthy to me, two suggestions

you say it was growing rapidly when you had detectible nitrates, so it is likely a lack of nutrients is causing the slowed growth. anemones do appreciate some nutrients in the water
The fact that it is moving up the tank most likely means it is not getting enough sustenance. This could be the anemone trying to get more light due to lack of nutrients. Feeding is a good idea. If it is not moving, this may be its new "normal" with your tank parameters as they stand, just stay the course and it should be fine, or you can try slowly turning up lighting intensity or increasing nutrient levels. Try to do one change at a time so you can see what helps at what doesn't.