Project obsidian

[lostman]

Thought i'd start a tank thread...

tank = 125 gallon
sump = 35 gallons aprox
bm-180ex
refugium
x2 return pumps
lights will be led @ 12,000k and 422nm
ill put some pictures in soon

 

[Cake_Boss]

Why do you have 2 return pumps?

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[lostman]

If one fails than at least ill have a little circulation.

 

[CRW Reef]

Great idea actually. Are they both internal or external? Might have to watch the heat with 2 if they are both internal and larger pumps. Anxious to see pics

 

[lostman]

They can be set to both but i am using internal im not worried about heat as there is no friction anywhere if so i can always use ice bags (hopefully not) the tank should be cycled in 3 weeks
As im thirteen school has taken its toll so this will be a slow build

 

[ReefCheif]

Wait! Your 13? Wow.

 

[ailachami]

any pump you put in the tank will create heat. after I switched to the mp10, my temp dropped 1-2 degree lower than my three koralia. you might not notice if your tank is bigger and more evaporation.

 

[Cake_Boss]

I don't see the logic in the 2 returns, are you doing a closed loop? A separate pump for each return (assuming you have two returns)? Would that cause high flow through your sump? I guess it depends on the pumps you choose. Will you be setting up a manifold to run reactors from the pumps?

Will the lights be DIY?

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[lostman]

two returns is basically a back up ill have two 375 gph pumps = 750 gph its just an extra fail safe, ill probably dose the water because im short on room ill put up a diagram there are three sump tanks because there is a divider in the stand.

 

[ailachami]

speaking from experience, 2 375g does not equal 1 750g at 4' height. smaller pumps lose a lot of pressure after 3'. you might only get 150g per pump at 4' where as 400-500g for the larger. I used to run 2 500g/h for my cichlids tank but when I switched to 1 900g/h pump, it was much stronger.

 

[lostman]

yeap we did a bit of planning and we are going with a 100gph pump insted of two

 

[Cake_Boss]

100gph pump? Might want to research the head loss on that. Reef Central has a sweet head loss calculator on their homepage.

 

[ailachami]

I think he meant 1000g/h?

 

[freedominco]

I have heard of ppl using 2 returns and having them on different circuts, that way if one breaker trips you still have the other pump to get you through.

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[lostman]

i ment 1000gph yea... not on my game today...

 

[lostman]

plumbing is all in a few fish are in & the ammonia,nitrite,nitrate have been at zero ... ive found a cycle lots of weeks ago unsure how many weeks ago. but everything is fine the skimmer is pulling all sorts out of the tank

 

[Smiley]

Ever have your power go out and come back on but yet your return pump sticks? People that live in brown out or black out areas tend to run dual returns just for this purpose. Odds are both return pumps wont stick when the power comes back on.

 

[Rebel]

I run twin return pumps on the Columbine tank, in addition to a closed loop. All three are Gen X Mak 4s. Redundancy, in my mind. That, and the tank is not in my home, so if something goes bad on one, the other picks up the slack until I get back there to notice. BTW, they are each plugged into different circuits as well.

 

[Craigar]

On my 180 I ran two 1200 gph pumps I loved it I could take one off line and clean it and never shut the tank down I also had a 150 gallon sump in the tank honestly my tanks was really sucessful and did great with that flow through the sump/refugium

 

[MartinsReef]

I also ran two sedra 5000 on my 180 until I switch to a reeflo dart. I only saw my temp drop 1 deg when I switch.

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