Platy stressed or more serious?

My platy keeps going to the same spot in my aquarium and almost curling up. She always has a slight bend to her ever since I got her but this is more than usual. My molly died 2 days ago and I've done a 50% water change and moved everything to different positions for the first time since I got my tank. Could she be stressed from all the change or should I be more concerned?
Ammonia 0
Ph 6.6

 

Sorry to read about your molly and platy.

Is this your 10g? What test kit are you using and what are the other parameters - nitrite and nitrate?

 

Yes it's my 10g. I don't have anything for nitrites and nitrates and I have seachem tests for ph and ammonia

 

I just asked my dad and he said he'll bring me to the pet store tonight to get some test strips, and I'll bring in a bottle of the water too

 

Instead of those test strips which are inaccurate, I'd pick up the API Master Test Kit for Freshwater. It'll test for everything you need. Are those Seachem tests the stick on alerts?

 

yes

 

They're good indicators to tell you at first glance if something's off but shouldn't be relied on to get accurate readings of your water. I'd pick up the test kit recommended above.

 

okay! sounds good, but do you have any clue as to what's up with my platy?

 

I'd try to rule out water quality first especially if your molly just died. But he may have not been healthy to begin with if he was always curved like that. When did you get him?

 

I got the platy in september and the molly less than two weeks ago, so I think the molly was just sick to begin with. The platy has been having fry almost like clockwork for a while now but she hasn't in the past few weeks.

 

What symptoms was the molly showing before he died? Let us know what the test results show after you get the kit.

 

Red spots on the mouth and head and was sitting at the bottom of the tank with no energy, it all happened within a day!

 

Could very well be a water quality issue. Do you still have the DG and corys in this tank?

 

yes I don't have a quarantine tank, but the others are doing fine

 

Good to hear they're not affected. Just would like to mention that the DG and corys aren't really suited for a 10g. Corys are shoaling fish that need at least 6+ of their own species.

 

The store was closed both yesterday and today so I couldn't get the testers and now her gills are pumping fast. It might not be a while until I can go again so what should I do in the meantime? I have done a 40% and 50% water change recently and I only have fungul and Ick treatment.

 

I also seem to be developing an algae problem, could that be what's affecting her?

 

No, algae is harmless to fish so I doubt that's the issue. Honestly, it's really hard to say without knowing the parameters and I'm not sure what else you could do for him.

 

I got the test kit and my ammonia is 0
Nitrate is between 40 and 80
Nitrites is about 2

 

Nitrites are very toxic and likely are contributing to your problems. Your nitrates are also very high - how often are you doing water changes? Can you check your tap water?

Your overstocking is probably contributing to your issues as it sounds like your tank isn't cycled.

 

I do a 40-50% every two days

 

Can you also test the pH out of the tap and tank?

 

Nitrites of my tap water are at 0

 

Ph are 6.2 in tank

 

And ph are 6.8 in tap

 

What are the nitrates out of the tap?

The bacteria is going to have a hard time populating and processing the ammonia/nitrite as you're seeing now because your pH is dropping close to 6.0. If possible, I would get your KH/GH tested out of your tap and tank. If you're unable to get a test kit (on Amazon for about $5), you can take samples to your LFS and they should be able to test for you. A low pH usually means a low KH which you will want to raise with things like crushed coral, cuttlebone, limestone or crushed oyster/sea shells added to your filter or substrate. It will increase your KH/pH and keep it stable.

 

Your low pH may contribute to the problems of both your Platy and Molly as well. Mollies especially need very hard water to thrive, and I'd guess if your pH is fluctuating like that, your water probably isn't. The pH fluctuations aren't going to help the situation either. Definitely get that GH/KH test if you're able, it would help us better recommend fixes.