You could feed both blackworms and earthworms.
This adds variety to your rays' diet.
They both have different nutrition values and are both safe food sources.
(Depending on where you get them of course.)
Blackworms carry diseases/harmfull bacteria when they are not kept clean and purchased from a dirty source. This is also true for earthworms as well.
The rumor that blackworms carry parasites (cestodes, ect.) is a MYTH!
Again it all comes down to where you buy them and how often you wash them.
They are teeming with nutrition and should not be ruled out because they are a bit more expensive.
Keep their diet varied! Your rays will love you for it!
BTW I would love to see pictures of your Hystrix
This adds variety to your rays' diet.
They both have different nutrition values and are both safe food sources.
(Depending on where you get them of course.)
Blackworms carry diseases/harmfull bacteria when they are not kept clean and purchased from a dirty source. This is also true for earthworms as well.
The rumor that blackworms carry parasites (cestodes, ect.) is a MYTH!
Again it all comes down to where you buy them and how often you wash them.
They are teeming with nutrition and should not be ruled out because they are a bit more expensive.
Keep their diet varied! Your rays will love you for it!
BTW I would love to see pictures of your Hystrix
