My parents are fish sitting, and what do you think happened? The Hydor mini heater stopped working sometime overnight. Only had it a few months!!! They woke up to him unmoving at the bottom. I had my mom keep swapping out water until the thermometer on his bowl got into the mid 70s. Now what? Is there anything else they can do? I feel so awful because I adore my fish, and my mom is a total animal lover and is having a meltdown!
He did start swimming as she swapped out water but is back at the bottom again.
She turned the heat way up in the family room for him and put a lamp on the water.
I'm thinking the water was in the mid 50s or worse all night.