The song is cool but..
The title is wrong XD it's a word by word translation.
Arruinar means to ruin something... the word you were looking for was Ruina.
Ruina = ruin, like in an ancient ruin.
Also, acuático is for a "he" we could say... but ruin in spanish is a "she" ... so it's Acuática.
And finally, the order we write is backwards... from yours... so the 100% accurate spanish translation for "Acuatic Ruin" would be "Ruina Acuática"
I understand you didn't know haha. I know because I'm from Argentina XD
PS: I didn't take out points because of the title.
--SephXD--