Wild Dwarf seahorses

[TitusStar]

Hey y’all just hoping to get some ideas I currently have 5 wild caught dwarf seahorses and I used to have 7. My biggest male passed away last night over however he has been eating up until his death. I am curious how to tell if it’s from old age or water issues. All other seahorses are okay and my mandarin goby is fine. This is the first dwarf seahorses WILD that I have purchased and wonder if I should switch over to captive?

 

[Jekyl]

Details on tank? Temp? How many feedings per day?

 

[TitusStar]

Tank temperature is 76.1 .
9 gallon tank with approximately 2-3 feedings a day. Of alive BBS . One feeding at 8 am one at 2 pm and one more at 8 ish pm

Details on tank? Temp? How many feedings per day?