you can build a plywood tank for about half the cost of glass or acrylic! you could even go to 1000 gallons and it would prolly come out the same as a 300 glass. acrylic....filters will Bitechya in the *** though.
first my jag killed my texas,thats when i first got them all.
then my red devil when he was little about 2in in my 10gal killed a blood parrot,a clown knife,and a oscar. so he got sent to my 55 with my other fish that were easily twice his size!!
then when he got bigger he killed my two big oscars.