What's wrong with my fantail?
So, I've owned this Fantail for about 4 years so far, always been happy, never had any problems with him (nor his mate) but over the last few days he has been acting really odd, lethargic even.
He keeps resting on the bottom of the tank, even almost on his side, he will rarely swim away from the area.
The tank houses another fantail and a few small tropical fish.
They have always been kept in warmer water (something I thought was OK back then), they have even spawned in these conditions, hopefully this isn't the reason.
All the other fish are 100%, water is ok, tank is 30 gallon, not sure where to go from here.
20 Gallon Reef / GSP / Yellow Button Polyps / Many Zoas / Chromis / Lemon Damsel / Clownfish
70 Gallon Freshwater
35 Gallon Axolotl Tank