Don't throw the prawn heads away, as they are the best bit IMO. Silkworm I am not so keen on as they are very greasy. Like Scott, I like to steer clear of high GI foods.
This is the recipe I use. So far it holds together better in the water and forms a nice malleable dough. It freezes well, if it is a bit sticky when thawed, just dust it with a bit of seaweed flour.
For 1 Kg (approx)
600g fish paste
150g seaweed flour
40g clay
100g egg white powder. (aka albumin in the UK from carp bait sellers eg
http://www.ccmoore.com/ £8 a kilo.)
6 Vit B complex pills
1/2 teaspoon of vit C powder
25 ccs oil (half safflower, half codliver oil) I use more in the summer.
clove or two of garlic if you like.
The paste is easier now. You need a mincer tho, not a blender. A good food processor will also work, but it needs processing thoroughly. The grinder gives a finer paste.
I cook up the herring or mackerel with no water, allow to cool and add an equal weight of prawn heads, put it thru the mincer and mix together. Gives a lovely thick paste. Bag it into 600g amounts and freeze. Obviously the base paste can be made in fairly large amounts if you wish. 5 kilos of herring plus 5 kilos of prawn heads will give enough paste to make 16 kilos of food.
On the day, take 600g of the thawed fish paste, and stir in 150g of egg white powder until it goes to a sticky paste.
Mix in six crushed vit B tabs and 1/4 teaspoon Vit C powder, followed by 25 ccs oil (codliver and safflower/sunflower 50:50 plus a bit of wheatgerm oil if you like).
Then stir in 40g Refresh clay, and when that is mixed weigh out 150g seaweed flour. Add the flour and knead well to make a dough. Don't use all the seaweed flour if you don't need it, as too much will make the paste too dry and crumbly.
Also feed some fresh veg like squash, sweet potatoes etc and some live food, prawn tails and mussels. For squash or pumpkin, I skin it and cube it into suitable sizes, drop it into boiling water , bring to the boil and simmer for about 3 - 4 minutes, less for small cubes, more for big. I then put it immediately into cold water to stop it cooking. I don't bother skinning sweet potatoes.