So im trying to decide between the two and i have some questions. First off, would two male firemouths or convicts be able to live together? Or two females. I am going to order them online and they cannot guarantee them being male or female. Same thing for convicts. Also would i be able to keep one of each? Is there a reputable online store i can use? I have a 35 gallon tank. Would this be sufficient for a green terror? I have kept many cichlids before and i can keep it very clean. Any other advice about this would be helpful. THank you!

I looked up some stuff about both of these fish before. I owned a Convict for a very short time and have never owed a Terror. But, off the to of my head from what I think I remember I am thinking that 2 Convicts, male or female would be okay together provided they have enough room. Convict and Terror (They live up to their names) no. Two Terrors.....I'm thinking no. I would also think that 35 gals might be a little small for them. I AM ONLY TELLING YOU WHAT I THINK I REMEMBER AND I MIGHT BE TOTALLY WRONG SO GET SOMEONE ELSE'S OPINION FIRST. But, I am 100% sure that I read that Green Terrors live up to their names and will terrorize pretty much anything else in the tank.

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10gal fry tank planted with Wisteria, Java Moss, Anuabis and Anacharis
35gal Sponge Bob tank with live bearing tropicals (daughters tank)
15gal planted with Swords, Java Fern, Wisteria and Red Rubin housing 10 fry and 2 bladder snails
55 gal with Oscar (future planted tank with angels and flowerhorns)
55 gal Community tank (platys, mollys, guppys, glass catfish, angels, phantom tetra, red eye tetra and swordtails)