Setup a fan pointing across the tank as a form of evaporative cooling. I assume though that would cool the top layer of water more than the bottom and I wasn't sure if the differential in temperature may make things even worse?
A fan is a fantastic method for lowering a tank temperature efficiently; when researching methods to effectively cool a 60 gallon ...
Fish in the pictures attached to your question looks like Gyrinocheilus aymonieri (Chinese algae eater, CAE for short).
Chinese algae eater (Gyrinocheilus aymonieri)
Image source: Wikipedia.
Image source: aqualog.de.
Image source: aquascape.ae.
Chinese algae eaters are fish from the carp family Gyrinocheilidae (they are the only one genus in it); they are ...
Yes, there are a decent amount. In fact, I have a specific species that might work for you: Texas river cooter (Pseudemys texana); they do not eat fish but instead are herbivores. Just keep them well fed.
It will be difficult but not impossible to find a turtle which fits your needs.
There are some main factors you need to focus on: temperature and water quality. The temperature will be important for your turtle, the water quality for your fish.
You need to find the kind of turtle, which will survive in the temperature region you live in. If you decide to ...