I was given this plant as a gift and the instructions for watering was put 6 ice cubes on plant once per week is this a good way to water and is the plant getting enough water from the ice cubes
Many plants use this same recommendation. Orchids can be watered like this as well. This method for watering is just fine. It can keep you from over-watering, which is a common problem. If you are recommended to water in this fashion, typically, it means that unless you are fully aware of how much water the plant needs, then it is likely that one will over-water the plant. To under-water is MUCH better than to over-water. If you were recommended this method by someone who is familiar with the plant, then I would maintain this practice.
Now, if the plant has already gotten overly dry, then it will not soak up this water very well. The article I include will show you how to fix this.
Here is an article for more information about this plant: https://www.gardeningknowhow.com/houseplants/anthurium/anthurium-care.htm