So I've had a male and female Dwarf Gourami in a 60 Litre tank for 4 months and had zero issues, but the last couple of days I've noticed them on the floor of the tank and the female seems to just rest on the bottom almost panting. I thought that they were supposed to be mid to top dwellers in the tank, so this type of behaviour has got me concerned, I'm wondering if there is an issue or they are just sleeping (The images are only of the female because the male doesn't seem to be exhibiting the same odd behaviour). I've checked all the water parameters and they are all fine, I used an in date (checked before use) API master test kit to make sure and did a 50% water change in case there wasn't enough oxygen in the water, but other then this I'm stumped. Any help would be greatly appreciated