Hi All, I am back with an exciting new project to start near term and I have a few questions. I'd like to set up an indoor round pond as per the picture below. The container has a diameter of 125cm, 73 cm tall and holds 900l of water. It is a potable container made from polyethylene. It will hold all my current fish which is a bunch of corydoras, 7 clown loaches, 5 khuli loaches and lots of shrimp if they don't get all eaten. It will have lots of emersed plants pots on the perimeter and some underwater plants. The light will be simple flood led held by a gooseneck. I won't see much of my bottom fish with this setup but I prefer them to be as happy as can be. My question is, what's the best filtration for a round container of this size and how would one set it up to benefit the system in the best way? Currently I own 3 external filters and multiple internal filters ranging between 2000l/h to 1000l/h. I also own a 1250 pump and 2500l/h powerhead. Do you think my clown loaches will be happy in there long term? Will clown loaches eat kuhli loaches? Would two 300W heaters be sufficient? Would 30W flood led as per the specs below be sufficient for emersed tropicals or should I go higher? http://www.ledkia.com/uk/buy-ultras...tml#/colour-temperaturecool-white-6000k-6500k Are there any risks I could run into with this type of setup? Any other ideas are welcome, setup wise, planting wise, substrate, light, etc... Thank you all for reading and any help is welcome.