Splits of the long tentacle hosting anemone in the aquarium have not ever been documented, to my knowledge. I would love to see a picture of said anemone to ensure it is Macrodactyla doreenis
My Bulb Tipped anemone has grown over the years so that it's tentacles resemble that of an LT, and even have people ask what kind that is (because it obviously doesn't have bulbuous tips as would be expected). I would definitely make sure the ID on that anemone is correct.
I am going to try to get you guys a picture. I need to get a digital camera first. All my levels were ok except I have been trying to get my nitrates down over the last month. I built a DYS denitrifier. The levels were above 50ppm, and now below 10. While the unit was cycling though my PH was 7.9/8.0 from the possible increase in Sulfuric acid.This lower PH possibly caused my cyano bac outbreak.During this period, All my specimiums in the tank never looked so good. The split occurred at night.Temp at night is 74.No heater is used. I have a chiller, so temp varies from 74 at night to 79 day time. The reason I have no heater, it broke, so I just thought I would is what happens if I let the temp do its own thing. The only variation was the temp and the PH. Calcium is around 500
Temp swings and salinity swings sometimes cause BTAs to split. I do not believe it is known if it is stress that causes it or if those conditions trigger reproduction. Maybe it is one or maybe it is both. We may never know.
I must say that a five degree change over the course of a day is a stressor on you tank inhabitants. I'm not saying that it caused your anemone to split. However,I am saying that it is putting undo stress your specimens. Ph swings also stress inhabitants. The reef/ocean is a stable environment and it's occupants do not fair well in constant unstable conditions.
The Ph swing was only for a short period while the denitrifier was cycling. Normally it stays at 8.2 am and 8.4 pm. As far as temp goes, we had two cold nights last week. Normally low temp is 76, high is 79 with the chiller.Thanks for the advice though.
I've had two of my BTA (a rose one and a green one) splitted. One occurred during a drastic salinity change, from 1.030 to 1.025. The other one happened when the BTA was transferred to a new tank. Both of the BTA's were healthy prior to the splits. IMHO, stressors caused the splits since two animals have better chance than one.