After many fails of fish chaining (10 times:() I tried one more time and found my beautiful Shiny Skrelp which I named Randy. Sorry for the image being on its side.
Lots of yays!
And may the Dunsparce be with you.
Shiny Skrelp looks awesome! Congratulations! :D
Mostly you find a shiny's while chain fishing around 15 that's how I found my shiny dragalge.