Help with Aquarium!! T_T

[CookieYuki16]

I got a Gwee Horse [Lite] and a Lazor Fish [lite] from Dumpster Dive.
When I tried to put them in my Aquarium and feed them, they died for no reason!! crying
So I refreshed the window and tried it again and again, but they always die!
I couldn't give them names, too, because they weren't in that fishbook...
And if I ask Barrett he doesn't say that there's anything wrong...
What problem does my aquarium have? And how can I solve it? emotion_0A0

My other fish are alright, only those two are making trouble... emotion_8c

[MidnightShadowLights]

I have simmilar issues with items I have earned from Dumpster Dive not showing up at all on my Aquarium Inventory list, but being in my regular inventory list.

[RecycledBabies]

I have the same issue
I put fish in,
then feed them and some of them die? lol
they don't even show up on the fish list
and when I refresh they're not there but back in my inventory.