please help sick zebra

[scornett34]

hi i am very new to group like 5 mins new. i have a very bad looking zebra fish one side is huge ,she is like 4 yrs old and her mate died 2 months ago . wasnt sick, the strainer on my tank fell off and 3 fish was sucked up. very sad i had ,had them forever. anyway about this one she looks miserable but is swimming and acting ok, she just looks so bad. can mollies breed zebras? i know it may be a silly question but i am confused never seen this before and have had fish for like 15 yrs. please help. thanks ,scornett

 

[WILDER]

Need water stats in ammonia,nitrite,nitrate,and ph, can she maintain her balance in the water, any scales sticking out like a pinecone, is she still eating try a shelled pea, what do you feed the fish, plus can you say what it look like when she goes to the toilet.