I have now made my own Veg/Tuna Fish Food.
I freeze in ice cube trays and thaw a cube when required.
The question is " How much should I give them once a day ?"
The GF average in size about 3 inch body size.
Would a piece of the mixture the size of a small pea be enough ?
I think I am over feeding but they eat it with so much vigour I don't
know if this is enough ?? They are always begging for more !!

Advise please on feeding..

Infoseeker

Feed enough food that the fish keeps eating for 3-5 minutes.