Qurbaani & Halaal Slaughter

Using dead fish as bait and sport fishing

Q:

1. Are we allowed to use real dead fish as bait when fishing? Meaning, not the rubber bait, bait like sardines, etc. 

2. Are we also allowed to catch and release fish?

3. If 'no' for the above question, the law says that certain fish must be a certain length and they should not be endangered, etc. and if they don't meet those requirements they must be released, or else you can get fined if caught. So if the answer is 'no' for question 2 then what should we do. Will we be sinful if we release the fish once we caught it, because you don't really know what size fish and species you catching until you caught it.

Nafl qurbaani for Nabi (sallallahu alaihi wasallam) and other family members in one animal

Q: Although multiple intentions are permissible for nafl qurbaani, is it munaasib (appropriate) to perform a nafl qurbaani with the intention for Nabi Muhammad (sallallahu alaihi wasallam) and other deceased family members in one animal? (i.e. 1 sheep for Nabi Muhammad (sallallahu alaihi wasallam) and ones deceased parents/grandparents, etc.)

Grand parents doing aqeeqah for their grandchild

Q:

1. Should aqeeqah only be done by the child's father for it to be valid or can the child's grand parents do the aqeeqah if they want to out of love, even though the child's father can afford to do aqeeqah himself? Will the aqeeqah be valid in this case?

2. Will the grand parents have to take permission from the child's father if they want to do the aqeeqah? If they do it without his permission will the aqeeqah be valid or will the aqeeqah have to be done again by the father to be valid?

3. Suppose someone else, like any other relative, wants to do the aqeeqah, will they have to take permission from the child's father to do the aqeeqah?