Tomato issue

hikiwari

If it's not one thing, it's another!....
Can anyone tell me what's going on with my tomatoes please?
In containers in greenhouse, cordon grown, fed once a week with Tomorite. Watered twice a week. Loved , cherished, but going rotten underneath. What is this and how can I stop it?

Dovefromabove

Blossom End Rot?

https://www.gardenersworld.com/how-to/solve-problems/blossom-end-rot/

hikiwari

I forgot to add the picture. 

Yes it certainly looks like it ☹️

MikeOxgreen

BER. There is already a thread running on it.