[Mollies hiding and hanging out at tank's bottom]

Thanks! I took some of the stuff out. Also did small water change and added biological booster and ph regulator. One molly and catfish still alive.

[Mollies hiding and hanging out at tank's bottom]

Hi everyone, thanks so much for responses and recommendations! One of them unfortunately died today. We had 3 mollies and one catfish. It's really frustrating, because I thought we had everything in a really good shape before we added the fish, but still something is off. Water heater works as water is nice and warm. Water is not cloudy at all and when I checked today there is no indicator of ammonia in the water. I have no idea what is missing unless there is some bacteria in the water that makes them sick. Could it be plants??? 

If the rest of the doesn't survive we are planning to start from scratch and replace everything including plants. We have a 9 gallon Fluval tank so it's not large, but still should be enough for 3-4 fish I think. Do you recommend adding SafeStart bacteria?

 

Thank you again!

[Mollies hiding and hanging out at tank's bottom]

Thank you for responding so quickly! Before we added the fish the tank has been running for more than 2 weeks without any fish, just plants. We added crushed corral to increase PH too. Please see the attached test results just done few minutes ago.

[Mollies hiding and hanging out at tank's bottom]

Just bought three mollies over the weekend and all three are spending most time at the bottom of the tank or hiding. They were very active in the store tank. Tested water and all levels look good. Temperature is fine and filtration works too. I am not sure why they behave like this. I even added an air stone to add some bubbles yesterday but that didn't help. They did not come up to eat. Any advice would be greatly appreciated! Thank you!