Should I put Cory catfish with my Betta in a 10-gallon tank?

If there is a strong current, it would not be recommended for a Betta. There is also the water temperature differences for these species to consider. Corys are cooler water fish, doing best in water in the lower 70s F. Bettas do best in warmer water, between 78 F and 80 F. Platys are hardy and adaptable and do well in all but the coolest tanks.

Thanks for using Petco Pet Education Center, formerly Petcoach! Usually it is best to avoid this as Bettas tend to be territorial and aggressive and are generally unhappy when grouped. It is always best to keep them by themselves. Good luck and have a great day!

Female betta sororities are not "bad". They can be tricky to set up though. A 75 gallon tank is more than adequate for 15-20. Try to get them as close to age and size as possible and introduce them into the tank as a group. Provide PLENTY of cover (plants, hiding spots). Initially, there will be some squabbles and nipping as they establish their own heirarchy. Remove any that are overly aggressive. A betta tank may be too warm for Corys. Bettas do best between 78 F and 80 F whereas corys like water a bit cooler, 65 F to 75 F. A spotted leaf fish would not be recommended. It would likely eat the smaller bettas once it is grown.

I assume it is a male Beta? They typically are very aggressive and will kill other Fish. You could try to put a divider in the tank to keep them separate. I have seen those at most pet stores. Best of luck and thank you for using Pet Coach.

Hi there! The general rule of thumb is 1 gallon for each inch of fish, so I think that you may need a bigger tank. If the bettas are 2 inches each, they each require 2 gallons of water, making the minimum tank size 14 gallons. Since male bettas can be territorial and aggressive, I highly recommend a larger than normal tank with lots of hiding places for 7 fish (at least 20-25 gallons). You should also watch them very carefully for fighting, and have a backup plan in case any of them need to be separated. Good luck!

A male Betta can be kept in a 10 gallon tank with 5-6 neon tetras. You will need to monitor for any aggression initially as well as for any fin nipping. Male Bettas are easy to distinguish from females by their brighter colors and larger fins.

If the Betta is not acting aggresively, there is no need to remove him. Guppies, especially males, will fight with one another but it usually isn't serious. Providing plenty of cover for them to hide may be all you need. If the fighting persists, remove the aggressive guppy to his own tank.