Hi everyone I have a 120cmx50cmx50cm rectangular 300 litre tank which i'm planning to attempt my first aquascape on, but need some advice regarding optimum circulatio/flow setup for the tank I have. I have read so much on this subject, but the advice on my UK forum is so contradictory, & has only served to confuse me more. I have a Fluval 406 external filter, a Koralia 3200L/PH wavemaker/powerhead. I have the inlet and outlet hoses both on same side of tank at the rear. The water from the outlet pipe pushes water down the length of the tank towards the koralia. This is positioned to then continue the flow in the same direction, down the whole front length of tank. Then the flow is taken up by the intakke hose. Iunderstand the importance of 10x water turnover, but an additional filter is out of the question at the moment, so bought the koralia in the hope it might help. The plan is to go for a triangular shaped slope moun to left of tank with a lot of redmoor roots as focal point, and there will be a smaller seperate mound on right side of tank that will act as a secondary lesser focal point with a small redmoor root and rocks. The two mounds will both be heavily planted but with mostly low growing plants and lots of moss on hardscape. I am not planning to carpet the substrate. Will the circulation I have be adequate do you think? The other forum is pro spray bar, but I've read these reduce the outfow, and can lessen the flow around the tank. I do have a full length spraybar if needed. I have no idea if I should be using it or not. Some say no, others say you shouldn't run a planted tank without one. I'm just looking to make the best of the equipment I have. Would a smartwave controller on koralia make any difference to having koralia on without? Would the smartwave give a different flow effect in the tank? It's an extra £56 if needed, so don't want to waste money on one if it's not gonna make a significant difference. If there is any other additional equipment that you feel I may need that will assist what I already have them I'm completely open to suggestions. I apologise for the length of post, I would be so grateful for any help anyone can offer. The more I read, the more it confuses. You all seem a highly professional bunch of people, whose opinions I would value greatly. Thank you for taking the time to read my post.