Sick Fish?

[Zinthos26]

I've noticed one of my zebra danios is not swimming very well. Her tail droops down and sometimes she swims a little crooked. She is still eating but I'm worried I'm going to find her dead. Does anybody know what might be the cause of this? A few months ago she got stuck in a little flower pot I had in there. That was such a scary thing to find but she got out. She had some cuts all over her and I was worried she might get an infection but she healed up completely. It has been months since then so I really don't know if that might be whats wrong now or something completely different. All my other fish are fine so far.

 

[cmw9787]

Can never hurt to do a water change (roughly 50%) and add a bit of aquarium salt.

 

[Zinthos26]

oh yeah I tested my water, everything normal
ph 7.6
ammonia 0
nitrite 0
nitrate 5

 

[cmw9787]

I'd still do it. Really, if you're unsure of what might be causing a problem, what harm can a water change do?

 

[Zinthos26]

yup fridays are when i do my water changes so ill be doing that soon. Just wondering if maybe this might be something internal and if i should be buying something to treat it

 

[cmw9787]

most things i've read say that medications often aren't much more useful than a water change and some salt. i'm sure there are exceptions. but i wouldn't know what could be causing your problems so until someone more knowledgeable posts here, i'd at least do that for now.