Question of the Day

Can you name this flowering cactus?

My husband has had a cactus garden for many years.
He moved most all of the plants from our previous house to current house a year ago.
I never took much interest in them until now.
Feeding them has changed the whole perspective of sticky cactus plants for me.
He claims I feed them steroids.
This particular one had not bloomed before and now it has three flowers on it.