Betta with lose of activity level and molly fry with not ICH

[Sprinkle]

Hi all! I've noticed that my betta has lost some of his activity level. He lays on bottom without slightest movement. My temp is fine I suppose, but I will make it a bit higher and remove some of the water as it seems that the current heater I have is unstable, doesn't heat from time to time, that is why I'll be lowering water level as this should help the heater work, I think my thermometer is wrong as the tank glass is freezing, not like it was still warm yesterday...
I think temp might be lower than I think. I've noticed that when temp is lower for mollies, they will get white spots and clamped fins, but it's definently not ICH.
I also noticed with the lose of activity is that my betta is not often greeting me and dancing to me like he should.
I did notice the heater not working today, it's not heating.
There has been a situation that I have put in more water and the heater wasn't heating at all and temperature has gone down drastically and then his activity has stopped, whenever his going through things, he stops moving his all fins at all!

Could someone help please? I'm really worried about this little guy
Should I do water change? Clean gravel? What should I do? Add aquarium salt?



He's swimming around now like new. For now.. then he'll stop again, and the white not ICH spots on molly fry?

 

[Amazoniantanklvr]

Looks like a bacterial infection on the fry.
Are you talking about the big white pot on the betta?

 

[Sprinkle]

Its his natural colouration. The fry and my molly from my lfs have the same thing, couple of warm water water changes and everything gets normal again for some time. And I'm talking mostly about the lose of activity of my betta.

 

[Amazoniantanklvr]

Id turn the temp up.
Bettas can do through phases. Maybe he's just lazy.

 

[Sprinkle]

I'm not sure if he's lazy. Maybe he's bored.. I should turn up the things.
Make a party? A surprise party for him? I'll need snacks then and diet coke!

 

[dudley]

Sorry you are having problems.

The temperature of the tank may be one of the issues for the betta. Do you know what the temperature is right now?

Can you test the water parameters for ammonia, nitrite, nitrate and pH? If not, I recommend buying the API Master Test Kit or a similar brand in the U.K..

 

[Sprinkle]

pH is 7.2, water is moderately hard, bit not so hard. Tank is fully cycled (ammonia is 0, nitrites are 0) and I do weekly water changes keeping nitrates at 20-25
Current temp is supposed to be clear on the photo.

 

[dudley]

Thanks!! Nitrates seem a little high to me, a water change should bring them lower. Have you tested your tap water for nitrates?

 

[Sprinkle]

Thanks!! Nitrates seem a little high to me, a water change should bring them lower. Have you tested your tap water for nitrates?

Tap has about 10-15 nitrates. I've got there some guppies and fry and shrimp. What about changing water twice a week, would that do any good?

 

[dudley]

Since your tap nitrate is 10-15ppm I think your tank is OK at 20-25ppm. I like to suggest 25% water changes weekly to keep nitrate low and remove contaminants that we can't test for. Fresh water is usually enjoyed by the fish anyway.

Your pic showed up and the temp appears to be around 82F. As long as you are in the green section you should be OK.