The new fish in Minecraft are bug when you re enter the world sometimes the fish is invisible even when you spawn them in with the egg I think for your world your in too, some fish when they flop like there were flying a little but the tropical fish touch the ground ok why are there flopping so quickly and flop around them seft but not flop in it side like the PC so fix that and the puffer fish is not puffing when your close to it in game mode 1 that is a bug or a feature, sometimes like the Invisible one there texture is a bit mess up even in spawner as show in GIF ya alot of bug fix do it in the next bulit, That one is a funny bug, can you add fish sound I like the puffer fish sound when dead I like it alot and change there Id like "Puffer_fish" or "Cod_mob" like in the PC lot to read so there you go.
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-31817.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
If you have not, you might like to make use of the search feature before making a new ticket, as it's likely that the issue has been reported already.
Also, please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them. (If your ticket does not look like the example given here, then it's likely to be closed.)
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki