Purple and red Firefish can be kept together in the same tank. However, it is important to note that every fish has its own unique personality, and there can be variations in behavior even within the same species. Therefore, individual fish may exhibit different levels of skittishness or aggression.
In your case, it seems like you have been successful in keeping two red Firefish and one purple Firefish together in a 37-gallon tank without any issues. This is great to hear! The fact that they are staying on opposite sides of the tank suggests that they are establishing their own territories and coexisting peacefully.
It’s interesting to note that you mentioned the purple Firefish is not as skittish as the red ones. This could be due to differences in personality or simply the specific individuals you have in your tank. Some fish are naturally more timid and easily startled, while others may be more bold and confident.
In general, Firefish are peaceful and relatively easy to care for, making them suitable for community tanks. However, it is always important to monitor the behavior of your fish and provide suitable hiding spots or areas of refuge in case they feel threatened or stressed.
If you are considering adding more fish to the tank, it’s essential to research compatibility and ensure that the tank size and conditions are appropriate for the species you want to introduce. It’s also worth mentioning that Firefish are known to be jumpers, so having a tight-fitting lid or mesh cover is crucial to prevent them from escaping.
Your experience with keeping red and purple Firefish together in your tank is a positive one. It’s great to see that they are coexisting peacefully and utilizing different areas of the tank. As always, it’s important to observe their behavior and provide a suitable environment to promote their well-being.