Silverdollarboy2 Posted June 17, 2014 Report Share Posted June 17, 2014 What would a good filter for a 750 litre(180l x 70 w x 60h) be. I would prefer a single filter but I might double up on two of the same kind.It would be good if I had about 6 or 7x turnover. Quote Link to comment Share on other sites More sharing options...
Godly3vil Posted June 17, 2014 Report Share Posted June 17, 2014 For a tank that size you will really either need to run a sump as in my opinion even one fx5 wouldn't be able to filter it by itself. Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted June 17, 2014 Author Report Share Posted June 17, 2014 Could I double up on any filter? Quote Link to comment Share on other sites More sharing options...
Godly3vil Posted June 17, 2014 Report Share Posted June 17, 2014 Yeah, 2 fx5 or 2 aqua one nautilus 2700 would probably do it, but for a fraction of that cost you could setup a sump which will work lots better. Quote Link to comment Share on other sites More sharing options...
hovmoller Posted June 17, 2014 Report Share Posted June 17, 2014 Or an Eheim 2080 if money is not a problem Quote Link to comment Share on other sites More sharing options...
David R Posted June 17, 2014 Report Share Posted June 17, 2014 +1 for sump if you're willing to do the research into building it to suit your needs. Otherwise any of the above suggestions would work, two of the 2080 that Hovmoller suggested with the built-in heaters to reduce the clutter in your tank would be my pick, but you could set up a very good sump for a lot less... Quote Link to comment Share on other sites More sharing options...
Adrienne Posted June 18, 2014 Report Share Posted June 18, 2014 Silverdollarboy is probably our youngest forum participant at 10 years old. Is there anyone living in his neck of the woods who might be able to assist him or if someone is able to draw up what he needs, if he went to a sump, and post it on here so he can see? Or even point him to the better links on the internet? Quote Link to comment Share on other sites More sharing options...
David R Posted June 19, 2014 Report Share Posted June 19, 2014 I've been meaning to write an article on the subject for yonks now, but always seem to find something easier to do... :lol: If you want a sump, then; Is your tank already built, and is it drilled? How much noise can you tolerate? How much room do you have under/beside/behind the tank? Can you (or anyone you know) DIY stuff, like cutting, measuring and gluing pipes? Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted June 20, 2014 Author Report Share Posted June 20, 2014 If you want a sump, then; Is your tank already built, and is it drilled? How much noise can you tolerate? How much room do you have under/beside/behind the tank? Can you (or anyone you know) DIY stuff, like cutting, measuring and gluing pipes? I'm not sure Quote Link to comment Share on other sites More sharing options...
David R Posted June 20, 2014 Report Share Posted June 20, 2014 I'm not sure That's going to be the biggest thing, there's a bit of a learning curve and a few different concepts to understand if you want to design a good sump for your set up, but if you're not comfortable with measuring/cutting/gluing pipes then you're probably best to stick with canister filters. It's not really that difficult though, just remember the old adage of 'measure three times, cut once'! In it's simplest form, all you need is a suitable-sized old aquarium, a couple of filter socks, some ceramic media (or pond matrix is better again if you want to spend more) in laundry bags, and a suitable return pump. Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted June 20, 2014 Author Report Share Posted June 20, 2014 What would be a good size old tank? Quote Link to comment Share on other sites More sharing options...
kinnadian Posted June 22, 2014 Report Share Posted June 22, 2014 As big as you can get away with really, for 750L you would want at least 100L I think. That is close to the bare minimum for a tank that size to fit in all your bits and bobs and not have it horribly cramped. I think you may struggle with a sump if you aren't DIY-inclined. Quote Link to comment Share on other sites More sharing options...
David R Posted June 22, 2014 Report Share Posted June 22, 2014 Yeah I think 100L would be bare minimum, but it also depends on the shape of the tank and how you set the sump up. You need to have enough water in there while it's running to keep the pump from sucking air, while leaving enough empty volume to hold the "skim" that flows down from the main tank when the pump is switched off. If you have an inch of water above the weir in the tank based on your footprint of 180x70cm you'll have at least 30L of water plus what is in the plumbing and overflow. I'd budget on 50L spare at the very least, so bigger than 100L would be advisable. Quote Link to comment Share on other sites More sharing options...
hovmoller Posted June 22, 2014 Report Share Posted June 22, 2014 When I was 10 years old I'm pretty sure my mom wouldn't have allowed me to build a sump serving a 750L tank. 2 large canister filters is my recommendation for this young chap Quote Link to comment Share on other sites More sharing options...
David R Posted June 22, 2014 Report Share Posted June 22, 2014 Good point!! Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted June 22, 2014 Author Report Share Posted June 22, 2014 When I was 10 years old I'm pretty sure my mom wouldn't have allowed me to build a sump serving a 750L tank. 2 large canister filters is my recommendation for this young chap Thank you for this information. I am looking at buying 2 cannister filters today. We thought we would get 2 Aqua One Nautilus filters. Quote Link to comment Share on other sites More sharing options...
Ira Posted June 22, 2014 Report Share Posted June 22, 2014 Thank you for this information. I am looking at buying 2 cannister filters today. We thought we would get 2 Aqua One Nautilus filters. Your allowance must be much bigger than mine was when I was 10. Actually bigger than my allowance is now. :slfg: Quote Link to comment Share on other sites More sharing options...
kinnadian Posted June 23, 2014 Report Share Posted June 23, 2014 Your allowance must be much bigger than mine was when I was 10. Actually bigger than my allowance is now. :slfg: Definitely bigger than mine as well! Quote Link to comment Share on other sites More sharing options...
Ismart120 Posted June 23, 2014 Report Share Posted June 23, 2014 Much bigger than mine too, and at ten, I was lucky to have a 150... I've got naut on my 375 litre; I think two of those on yours should be a good fit. Congrats Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted June 30, 2014 Author Report Share Posted June 30, 2014 I haven't bought the nautilus yet so would it be possible to run a fluval 406 and 1 nautilus? Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted July 1, 2014 Author Report Share Posted July 1, 2014 Would it work? Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted July 24, 2014 Author Report Share Posted July 24, 2014 Got my tank today :happy2: it's 183x61x61 so 680 litres.Dad thinks I should do a sump so could anyone give me some basic designs for a good sump. Quote Link to comment Share on other sites More sharing options...
kinnadian Posted July 24, 2014 Report Share Posted July 24, 2014 This is an ideal freshwater sump. I'd recommend around 100 litres for your sump, but larger is always better. That triple baffle is called a "bubble trap", basically after an overflow small bubbles are often formed and the bubble traps prevent bubbles from passing through the sump and into the return pump. They work because water has to flow deep under the surface to get to the next chamber, and bubbles float up so generally do not go to the next chamber. As the image shows, you first want filter floss, then you want coarse media such as bio balls, and finally you want fine media such as ceramic noodles. Final chamber has return pump and heaters. Alternatively instead of filter floss you can use filter socks on the drain. When designing it, keep in mind the ease of cleaning the media (recommended to do every 6 months or less). For draining, you can either drill or use an overflow. Drilling is harder but safer, overflow is easy but can fail. These overflows are very good if you don't mind the cost: http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=18358. With some minor modifications it can be very silent. An extremely good return pump for you will be the Eheim 1260. Heaters, you will need at least 2x 300W, maybe 3 depending on how cold it gets. Quote Link to comment Share on other sites More sharing options...
Silverdollarboy2 Posted July 24, 2014 Author Report Share Posted July 24, 2014 thanks kinnadian Quote Link to comment Share on other sites More sharing options...
David R Posted July 24, 2014 Report Share Posted July 24, 2014 There's nothing wrong with the above design, but IMO it is over-complicated for the average FW set up. I would use two 100 micron filter socks suspended over an old aquarium (100L+), then use ceramic rings stacked up in laundry bags (for easy cleaning) then heaters and return pumps. Baffles aren't really needed, and bubble traps are more for marine tanks. Is your tank drilled? If not, I would look into drilling it and setting it up with a herbie-type overflow. Quote Link to comment Share on other sites More sharing options...
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