been a long time since i logged in so first off hello to everyone. i have quite and interesting collection in my 75gal. tiger oscar 7", 1 green sunny 6", two bluegill 6", 1 sleeper goby6" and one pleco 6". filtered by a fx5 with a spray bar, and a hob filter as well. im feeding hikari cichlid gold. water changes are once in every two weeks. my fish have all seem to hit a lull in growth although the goby never has grown much. what can i do to help boost growth. and if they are all about 2 years old is there time left for them to grow? any ideas or comments would be greatly appreciated. thanks