I am new to this forum so I hope this is in the right place.

I might need to get a new bulb due to algea growth. Does anyone have any sugguestions?

It is a 150W HQI in a giesemann fixture.

should I go with 10000k or 14000k?

I do have a little actinic in the giesemann but I don't know if it is putting out enough light for the tank. (58 Oceanic)