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  1. General Reef Discussion
    Hi I have a 180gallon fish only tank that has a canister filter. I was going to upgrade to a 40 gallon sump is there any recommended hang on back overflows and return pumps? Whats the best flow rate or gallon per hour for each of them?
  2. General Reef Discussion
    Hello, I have been doing a lot of research as I look to upgrade to a 120g (48x24x24) Reef tank, and there is a TON of information on here, but its a bit sporadic. I need help and I think it would help other beginners if we consolidate some of the basic "numbers" everyone should know when...
  3. Reefing Equipment
    am switching from a IM Nuvo 16 to a Fusion 20 tank (after an unfortunate leak!). Now, the problem with those tanks is that the back chamber sides are just a bit too tight to fit a Tunze 9001 skimmer, and one option is to put the skimmer in the middle chamber, but that requires putting 2 return...
  4. DIY Forum
    I'm either going to drill my 20 long into a 10 gallon or a 20 high, but I'm not sure what GPH rated overflow box I should get, and what GPH return pump I should get. Any suggestions?
    gph
  5. General Reef Discussion
    I'm wanting to buy a wave maker for my tank but I'm confused on how gph works. So what is confusing me? Well I have a 150 gallon tank so I would need 1500 gph I think right? Any ways would having 4 powerheads that each push 1500 be 1500gph or would having 4 powerheads that each push 500 gph be...
    gph
  6. Water movement (pumps & wavemakers)
    Hi everyone, I am new to this forum and would first like to introduce myself. I have experience in many freshwater aquariums including planted tanks as well. This is my first time setting up a saltwater tank and plan on making it a reef tank in the future. My questions is the flow in my...
  7. Skimmers & other filtration
    OK, so here we go. I'm about to start setup on my third tank, this one will be a 180. I'm planning on drilling for a closed loop system, and also putting on an external overflow box to run water to the sump. My question is this, am I better off running more GPH through the closed loop and...
  8. General classifieds
    I have an extra Koralia nano 425gph powerhead. Used for less than two months. 15$ takes it. Will ship if needed.
  9. General Reef Discussion
    I want to purchase a water pump for my sump. I have a 150 gallon tank i have been hearing that i need my water volume x10 to get my gph. But i have also heard that i need to match my gph from my skimmer and my skimmer skims 500 gph. So im not sure what to do? Any advise would help thank you!
  10. Reefing Equipment
    I recently acquired a 75 gallon tank in which I plan to set up either a FOWLR or FO system (haven't decided yet). I plan on installing an internal overflow that is attached to the aquarium back wall as the bottom glass is tempered. What I can't decide on however is what size overflow I should go...
  11. General Reef Discussion
    I have read somewhere that for sps tanks, it needs around 30-40 times flow of total volume combining display tank and sump. Which means, I am planning a 40 breeder with 20 gallon sump so total volume is 60g. Now 60X30 = 1800gph. Which can be the total flow in tank. My planning is as below...
  12. General Reef Discussion
    I currently have 2 1500gph pumps in the main display of my 75 gallon tank and a 300gph return pump, equalling 3300 totall gph flow. Is this too much? I would like to upgrade to some new hydor koralia pumps and wanted an opinion on what is the best kind of flow rate for a 75 gallon soon to be...
    gph
  13. Reefing Equipment
    Hello guys, I'm setting up my new 120-gallon, with a 20-gallon sump. I plan to have soft corals on top of my clownfish. My question is, what should the GPH be from SUMP back to Display Tank? I heard the general rule of 10x, or even much more. But does that only apply to the Flow in general...
  14. General Reef Discussion
    I plan on keeping mainly soft corals and perhaps a few LPS corals in a 29 gallon aquarium. This will be my first reef tank, and I will hopefully be able to start purchasing necessary equipment as soon as within the next few weeks. I plan on using two Maxi-Jet Pro Aquarium Pumps in the tank...
  15. General Reef Discussion
    Hey TRT, I recently had my tank crash due to my refugium breaking and the deep sand bed spilling resulting in the release of Hydrogen sulfide (or whatever that chemical is). I made some updates to my tank and added a SSB in the display, and a new pump that is rated at somewhere around 1100 gph...
  16. Water movement (pumps & wavemakers)
    How would I go about PROPERLY sizing a return pump for my tank. I have a 150gal with a 30gal sump filled about half way. So aprox. 165gal. I currently run a 500gph submersible mag drive pump. So I'm turning over the entire volume of my system about every 20min. Is this a sufficient size pump...
  17. General Reef Discussion
    Hi I was wondering how I can test or check gph of a overflow. I recently picked up a90 gallon drilled tank with 2 inlets and 2returns, I'm trying to find out rerun pump size. Any help would be appreciated, thanks!
  18. General Reef Discussion
    I have 29 gallon display with 10 gallon sump...I have done the plumbing...Its direct overflow....no overflow box....drill is in the upper side of aquarium and sump has enough empty space (20 gallon sump) to hold overflooded water. I have put a valve in overflow pipe...not in return pump...can it...
  19. Nano Reefs
    what size pump would work for my 12 gallon nano. idk how mamy GPH it should be
  20. General Reef Discussion
    Im going to be using a mag 5 return pump in my sump. It's going to have an adapter connected to 3/4" tubing into an scwd then into two u tube overflows. It will have about 5 feet of head height. My questions is do I want a 300 Gph overflow or a 200 gph overflow? I wasn't sure but to me it makes...
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