Howdy all.
I thought I would just share my setup I have running at the moment.
Previously I used to run a 4' tank for my single 12" Oscar (Roy - as in the Big O) with four connected under gravel filters and an Aquaclear 300 external filter. This was a great set up as I had about 3" of gravel on the bottom and although the tank didn't need it I used to give it a good flush once every 18 months or so. Each time I was surprised just how effective the UGF worked. I had Roy for about 5 or 6 years and had set up the Aquaclear 300 to draw from the UGF with three other uprights using airstones.
Currently I have set up and cycled the same tank using just three UGF's and a new internal filter, a Aquanova 1200. I only has at this stage 2 1/2 inches of gravel in the tank but it fairly fine compared to the previous and is working well at present. Instead of the previous 500 litres of air per hour on three UGF uprights I have upgraded my airpump to now push 1000 l/h which is a big improvement. I also have an unfurnished 2' tank which is currently cycling.
As far as tank furniture goes O have a clay fired log, a few pinical feature rocks for fish to shelter behind and a couple of ledges. The ledges are mostlt for freshwater shrimp to shelter under as I found when I had Roy it was a great way to entertain him. He loved to stalk the shrimp, especially at night when they would get game and come out for a look around and to scavenge.
Never had any luck with plants. If Roy didn't destroy them they would die anyhow. Don't have much of a green thumb except for veges.
Anyhow - just thought I'd share my tank setup. I'll be sure to post a photo of two when I get around to it. Only discovered you guys (and gals) today.
I'm pretty excited as I only have 2 more sleeps until I pick up my stock.
Stay tuned for my new 6' setup coming in the next 6 months.
Happy New Year and warm regards
DadMac (Lake Macquarie, NSW Australia).