check the ingredients on both , probably contain the same things just different amounts ,[for example]of say meat or vegetable matter .........
A varied diet is best , most prepared foods have enough on there own to give the fish a healthy balanced diet .
Fish may become bored eating the same thing day after day , so mix it up the best you can .[ like if all we ever ate were peanut butter and jelly sandwiches

, we'd most likely need supplements / vitamins in our diet .]
I guess I'm saying , I'd feed both .
We use
Bio Blend pellets
shrimp pellets
tetra cichlid sticks
spirulina wafers [ spelling]
krill [ freeze dried ]
frozen foods too .
fresh green peas [ most of our fish eat them ]
we alternate what we feed .