thanks for all the replies guys
I guess I miscalculated its size lol... still it was larger in my house than at the shop!
I think this makes a perfect home for them... still want my dream of a 300G at some point but ill go with this so long
The eel is a fire-eel and he's roughly 20"+ long...
the oscars are roughly 11" long... and about 2 years old now.
The polypterus is also around 11" (only had him for about 6 months and hes doubled in size easily very fast growser!).
The common plec is around 12"
Royal Plec is a slow grower, had him for 2 years and he's only around 5"
Perhaps you have it loaded too much... when i first got mine, I crammed it full of polishing pads, filter pads, ceramic media... it used to collect air and have a low output... now I have it filled with pot scrubbers (Eheim Fix)... one tub of Eheim ceramic... theres plently of flow now and fantastic mechanical filtration and no air getting trapped... Took me a while to fully get it to work well for me... definately want another one though as they work so well!