My map is 100% explored, and I've always had two 4* Bigger Fish (grey). I used to have two 4* Big Fish (blue) but now I only have one and it has been this way for weeks now. I have two 4* Sea Serpents, two 4* Mighty Krakon, two 4* Ghost Ships, etc. Where's my second 4* Big Fish? Or should there only be one? I asked this question in my Guild but the only person who replied said he hadn't seen a 4* Big Fish for ages. My current 4* Big Fish is located at A21. Thanks!