I have been using Salmon Oil with a pumper top, you just add one "squirt" per 15 pounds. But it's nearly gone, so I'm trying to decide if I should get more of it (quite expensive), or use fish oil pills? I know some of you use the fish oil gel pills, and my questions are... is that as good for them as Salmon Oil? How do you know how much to give? Do they just eat the whole thing, or do you open the gel things and just add the oil to their food?