1 cup API pellets, presoaked in one cup of water
(I have tried adding pellets to gel food, and it just doesn't work out well. Flakes, on the other hand, seem to work ok...I have used Spirulina flakes before. Also I'm not sure if boiling will allow the food to still keep it's nutritional value, and it might alter the taste. [You are going to be boiling this mixture, right? There is no other way it will bind with the gelatin, and you're going to need to add water.] If you're going to feed exclusively gel food, I can see why you'd want to include commercial food, but if it's a supplement, I wouldn't worry.)
I'm adding it as a good protein base. 99% of the recipes I saw also used pre-soaked pellets that they mushed up, along with Jamie's recipe I believe, and I think it will help thicken up the texture as well. I think I still have their old flakes but I wasn't impressed with the nutritional content once I took the time to look at it.
My plan was to boil any veggies that needed softening etc. or if I buy anything frozen. Blend everything minus gelatin/water together until it's soupy, then boil the water and stir in the gelatin, and then mix that into the veggie, etc. mix and pour into the pan. That seemed to be a pretty common method on all the tutorials I watched.
1/2 cup daphnia
(Like, live daphnia? Egh, I don't know...and freeze dried will make a mess, let me tell you!
It is freeze dried. I could probably leave this out, but I thought maybe a little extra protein would be nice. My fish are still pretty small still and aren't really growing like I had hoped they would on the move to the new tank, so I wanna boost growth if possible. If it really makes a mess though, I'll skip it.
1 cup Romaine lettuce
(You can't boil lettuce, it just won't work.)
1 cup kale
(Kale is great, spinach is good too. I can never seem to buy kale in a reasonable amount, always some giant bag - but spinach you can get by the bunch.)
Good to know. Would I be able to freeze kale to make it last longer??
1 teaspoon garlic
(Yep, I usually get the already minced kind.)
That's the plan!!! 
1 cup broccoli
(Broccoli doesn't give up and emulsify very easily, it's going to make large specks in your food at best...which will make a mess in your tank if they are not all consumed. Have you tried feeding them broccoli before?)
I was thinking about that, too. I may see if I can find baby food broccoli or a broccoli mixture.
1 sheet of Seaweed (Sally's Seaweed Salad, 100% natural dried Porphyra yezoensis seaweed)
(Seaweed is great, but not in gel food. Again, it doesn't mix. Try giving them seaweed alone, they'll like it! I usually weigh down strips in the tank with a plastic clothespin. I just use the kind from the grocery store, nori.)
If I soak it, it should break up pretty well I think. The fish tear it pretty easily after a minute in the water, so I'm thinking a blender should have no problem with it. I have a veggie clip where they get seaweed normally, but I WOULD like to make this they're everyday food with maybe a treat here and there. They LOVE cucumber, and that's something not in the recipe, and I eat it like crazy, so I can give them a piece now and then.
4 containers of peas&carrots baby food
(That's good, there's lots of other flavors they like too! Mine loved butternut squash, for some reason.)
Good to know! I may add a few other flavors of baby food, not sure yet though.
1/2 green bell pepper
(Don't use this, really. It's too hard, and fish don't usually like it. I'm not sure why you'd want to use it...red pepper is supposed to be a color enhancer, back in the old days people would feed them pimento, but we don't really need to do that any longer! If anything, use paprika as a color enhancer.)
I picked this for it's vitamin content. I'll post a link to the chart I used to pick most of my ingredients. I made sure I got something from every category, and this was one thing it recommended. If I boil it, and then blend it, would it be soft enough do you think??
1 tsp basil
(Fish won't really appreciate this creative culinary addition, I don't think.)
Also picked for it's nutritional content. Though I've heard of people using thai fish sauce for flavor, which I think is weird.
3 tbsp canned pumpkin
(Hmm...maybe. I'd combine canned pumpkin with other "squashy" things, personally, and leave it out of this recipe.)
Jamie recommended this to me and it was also on that list I mentioned. I saw it in quite a few other recipes too. It's another color additive. I may add a sweet potato or butternut squash baby food too. I just haven't decided yet. Work has been crazy this week, so I just haven't been able to put more time and researching into it.
Insides of 1 spirulina capsule (spring valley brand?)
(I'm not sure about this, I haven't read about using human supplements. Is the only ingredient Spirulina? I use garlic oil on my fish, but the ingredients are just cold pressed garlic and soybean oil or something like that.)
It was spirulina and like one or two other types of algae. I was really surprised but I could find just like spirulina flakes around here.
4 tbsp agar agar/4 packets unflavored gelatin
Any tips or suggestions for additions/subtractions?
I think you're making it too complicated
Try just sticking with a few ingredients at first. You want this to blend smoothly. If it's coarse and lumpy it will make a mess in you're tank. The smoother the ingredients, the easier you're going to be able to stir the lumps out of the gelatin, too.
There's lots of recipes here:
http://thegab.org/Goldfish/gelfoodrecipes.html (the formatting is all a mess, but the links are to the left of the chart)
http://dataguru.org/misc/aquarium/Food.htm
There's a ton more, some of them are kind of "out there" if you ask me.
The savory things like spinach, kale, green beans, are best kept together, IMO. You can also make some sweeter gel food with stuff like sweet potatoes, corn, pumpkin, carrots.
All of these websites that say to use mackerel, sardine, tuna, etc....I'm not sure. Personally, I prefer to make the gel food vegetarian. Fish do love an oyster packed in water for a treat, but oily fish like sardine and mackerel just don't seem like a good fit combined with gel foods made of vegetables that are mostly water...since oil and water don't mix
I saw this too....definitely wasn't crazy about the idea either. That's one reason I added the pellets as well, for that protein base.
You will really quickly get discouraged and stop feeding this stuff it pollutes your tank, so try to make it as clean as possible and not too confusing
