What Happend

[blah111]

my crown tail betta got ill with ick and i treated it with medication and cleaned his tank more often.
he started looking better and had no sign of ick so my mom put a rubber lip pleco and an adf in with him last night. he looked okay, then a little while later he wasn't swimming quite right. i wake up this morning to find the frog on the betta like he's trying to get the betta to wake up, but i think he's dead. what did i do wrong!

 

[PrairieSunflower]

I am not even close to knowing much about aquatic frogs, but I do know that some frogs eat fish... is it possible that this might be the case with yours?

 

[leighton_87]

my crown tail betta got ill with ick and i treated it with medication and cleaned his tank more often.
he started looking better and had no sign of ick so my mom put a rubber lip pleco and an adf in with him last night. he looked okay, then a little while later he wasn't swimming quite right. i wake up this morning to find the frog on the betta like he's trying to get the betta to wake up, but i think he's dead. what did i do wrong!

What size is the tank?

Do you have a test kit? What are the results

 

[blah111]

there's no chance the frog ate him as he's an African dwarf frog. the tank is a 2 and a half gallon and has an air pump in it. we clean it often so my Mom did not want to get a test kit even though I told her it's worth it.

 

[leighton_87]

To be honest that's quite a small tank for a Betta alone - adding the plec and the ADF probably overloaded the filter and your Betta probably suffered from ammonia poisoning.

Also, while ADFs probably wouldn't hunt the Betta they are practically blind and will snatch at anything they perceive as food so it is quite possible if the Betta swan slowly past the ADF that he would have a swipe and could have hurt him.