Oral lesions (mouth sores) make it painful to eat and talk. Two of the most common recurrent oral lesions are fever blisters (also known as cold sores) and canker sores. Though similar, fever blisters and canker sores have important differences.
You could do a school of White Cloud minnows, they require cooler water, so you wouldn't need a heater. I think if you check the profiles, the ideal temp should be no lower than 67 degrees. Not positive.or example: my goldfish tank is fine in the summer, but my house gets so cold in the winter that I need to have a heater to keep it above 70F. Fish need a constant temperature which is one of the reasons we use heaters.
To determine the size of your fish pond filter you will need to know how many gallons of water your pond holds. For those with preformed ponds, this can be easy as it will state right on the unit. For those who have created their pond with a pond liner, you will have to do a little math.ou will need electricity near the pond to run the pump and the optional UV (ultraviolet clarifier or sterilizer). The first kind of pond filter is a submersible filter. This can be located inside the pond. On one end of it (or even within the filtering unit) is the pump with a tubing connected to its discharge side.