I have a 20 gallon long tank that housed 1 betta veil tail, 6 albino tetras, 5 pygmy corries and a mystery snail. They have all been together for at least 6 weeks and the betta has been very well behaved. Lots of plants and plenty of hide spaces for all
I wanted to add a few more tetra's so they would have a better group, but could not find any more albinos. Yesterday I bought 3 neon tetras - this seems to have turned my betta into a monster. I do know now I did a few things wrong. First, I could have moved the betta out for a bit to let the other settle. Second - I think its the color that is driving him made (he is a blue betta). But its too late now. One neon got swallowed whole immediately. Not sure how the betta even fit that guy in! A second one seems to have disappeared over night.
So only one extra fish, but the betta is still constantly flaring and turned the tank into a battle ground. The tetras are very stressed - he is even chasing the cory!
I still had the 3 gallon that was his home before with just a few CPD so I just moved the CPD out and the betta back in.
I guess I have two choices, can let this guy chill a bit and try adding him back in, or just get a new 5 gallon tank for him. Can't keep him in a 3 gallon anymore! The main question I had on that for you experts - if I get something like the fluval spec 5 and populate it with the substrate/plants decorations from the 3 gallon (and maybe some from the 20) could I move him into that quickly without doing a cycle?
Sorry for the long post, can't believe I made a mistake like this! Never imagined 3 little fish would disrupt the tank so much.