Cardinals

[hanziie]

Guys i have had 12 cardinals and one has died ive noticed that all of its fins of gone i currently notice i have another cardinal thats also had all its fins ripped off just so u know i have 43gal(200liter) tank with
11-cardinal
12-rummie nose
1-betta
3-mollies
1-pleco
None other of the fish have ripped fins just the cardinals the tanks in good condition water changes and level checks ect any suggestions

 

[kashif314]

Are u sure ur Betta is not the culprit?

 

[hanziie]

Doesnt seem to be he keeps himself to himself though ill keep a eye on him