October 31, 201015 yr comment_402264 Hi all, Tank is 1200 long and only 250Hx250D (all in mm - just to be clear) and I'm having trouble with dead spots. At the moment I've got a spray bar off my 2224 at one end under the bracing (picture a tank built by Greg if you know them) which I cut down to fit across the top (about 200mm long after the elbow). It's creating a nice ripple/wave at the top but not really creating any major water movement. The intake is at the other end of the tank behind a few plants. If I look at the surface there is quite the whirlpool but in general most of the crud in the tank falls below the spray bar - ie. at the wrong end of the tank. Can anybody give me any suggestions for better layouts? I have plants along the back of the tank and at the intake end if that helps with ideas. I'm thinking I'll go and get the eheim installation kits for intake/output but I still some ideas on how to set up the water flow. I was thinking of trying to get a spray bar the entire length of the back wall but this may be overkill and the pump might not be up to it. Appreciate any suggestions/help on this one. Report
October 31, 201015 yr comment_402265 I have seen people use a Tunze Nanostream to get more flow in a freshwater tank, they are 4500lph IIRC, with your tank length it should not cause a 'votex of doom' as the flow is diffused. I have a 6025 in a 108l marine tank that gives a good circulation of water and the inhabitants are not plastered to the opposite end of the tank. Not cheap, though. Report
October 31, 201015 yr comment_402275 These are cheap and do the same job http://www.trademe.co.nz/Home-living/Pe ... 382626.htm Report
October 31, 201015 yr Author comment_402277 If I were to go down the powerhead route where should I put them? I'm generally unsure of how the movement should be. Report
October 31, 201015 yr comment_402290 These are cheap and do the same job http://www.trademe.co.nz/Home-living/Pe ... 382626.htm how do they work - seriously considering one for my 450 litre planted tank as the fx5 doesn't move the water at the lower levels sufficiently. Report
October 31, 201015 yr comment_402292 If I were to go down the powerhead route where should I put them? I'm generally unsure of how the movement should be. If your concern is calm areas then my suggestion would be put them in or pointing at the calm areas. Report
October 31, 201015 yr comment_402293 I use one of those in my 650ltr tank to spread the co2 more evenly the fish seemm to love playing in and out of the direct flow. Report
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