sorry but this is no real color of Moro Jable, we were there a week ago ... nothing interesting if you've already seen places like Tenerife, Jamaica or India..
I've been in Morro Jable about 10 times in the last 30 years and that's exactly the colour the water has when the day is sunny, which is almost always. Don't judge a place over a short stay, you just had no luck.