HOB overflows?

[MizTanks]

Would an 1200gph overflow box be enough for a 26g? With a 1200gph pump? To much? To little?

[kgood1]

That sounds like alot, way too much IMO.

[jolson10450]

wayyy to much, i only have around 350gph pushing through my 29g tank, have a 600gph rated overflow on it. i have a mag 5 on it right now, if i upgrade to a mag 7 (500gph flow at my height) then my overflow should still handle it but 500gph plus a k2 in a 29g is to much flow, right now with the 300gph and k2 i get great flow

[MizTanks]

Yeah I thought it would be to much. So a 300gph would be fine?

[jolson10450]

it really depends on your overflow. if you have a 22g tank i would say see if you can find a pump that pushes say 275gph at the height of your tank, then look into getting a 350-400gph overflow

http://www.lifereef.com/frame.html

go down from there and you will see a nano-prefilter box (overflow) its rated for 400gph, so if you had a pump that pumped 300gph at the height of your tank then you will be fine.

[MizTanks]

Which one for my 26g bowfront?


Standard and Slimline Prefilters

Single Prefilter Box
$119.00 Order
(Click photo for larger view) Flow rate up to 600 gph (1200 gph for Double Prefilter Box)
Available in Standard and Slim-Line
(Standard & Slimline flow rates identical)
Outer box measures 6 1/2" wide x 11" tall
Inner box measures 8" wide x 8" tall x 3"
Standard Box tank-to-wall clearance needed is 4"
Slimline Box tank-to-wall clearance needed is 3"
1" male threaded output with connector supplied
Optional vac-type hose connector can be supplied
(Standard & Slimline flow rates are identical) Standard and Slimline Features:
AUTO-RESTART when power resumes, always 100%.
No aqua-lifter pump or other device needed!
All edges rounded so you or your fish won't harm themselves on sharp edges.
Large 1 1/8" diameter siphon tube, Double Prefilters have two siphon tubes.
1 1/2" of up/down adjustment of inner box.
Inner box cannot be knocked out of vertical alignment.
Long lasting and easily cleaned foam filter element.
Will not overflow, even if foam element becomes dirty.
1" male thread output and included 1" hose-barb fitting, Double Prefilters have two 1" outputs
Fits aquarium rims up to 1 1/2" wide and can also be made to fit acrylic aquarium rims or "Euro" style rims.
Colors available: clear, black, and blue (inner box only)
Available for Red Sea Max 130 aquariums too!
NOTE: The RSM Nano will only work on the
RSM 250 if the protein skimmer is removed.
If you wish to continue the use of the RSM protein skimmer we are working on another design which
should be available by March.

Nano-Prefilter

Nano Shown next to standard prefilter for
size comparison.
$119.00 Order Nano-Prefilter
Perfect for small reef or fish aquariums that don't require high flow rates.
Flow rate up to 400 gph (and anything in-between 0 and 400 gph) In other words it will flow whatever gph you give it.
Outer box: 4 1/2" x 3" x 9" high
Inner box: 4 x 2 1/2 x 6
Output connection 3/4"


Nano Features:
AUTO-RESTART when power resumes, always 100%.
No aqua-lifter pump or other device needed!
All edges radiused and chamfered so you or your fish won't harm themselves on sharp edges.
7/8" diameter siphon tube.
1 1/2" of up/down adjustment of inner box.
Inner box cannot be knocked out of vertical alignment.
Long lasting and easily cleaned foam filter element.
Will not overflow, even if foam element becomes dirty.
3/4" male thread output, hosebarb and clamps included
Fits aquarium rims up to 1 1/2" wide and can also be made to fit acrylic aquarium rims or "Euro" style rims.
Colors available: clear, black, and blue (inner box only)

[jolson10450]

the nano one would be good, get a mag 5 return pump depending on height, they usually push 300gph at like 4 feet so if its got to pump that high then you should be good. try to stay around 300gph if you get the 400gph overflow

[MizTanks]

I'm beginning to think I know what I'm doing :))
Nano it is then!!! Now I'm gonna go count my monies in da piggy bank :))

[ETBReefer05]

I've got a nice overflow rated for around 300gph. You could have it for around $15. Check out my selling thread. http://www.captivereefs.com/forum/showthread.php?t=10763

[tazzy695]

heck miztanks avoid the possible hassles of a hob over flow and drill the back and put a standard over flow box with bulkhead to drain water much safer IMO as you are not relying on a siphon to be maintained to work gravity dose the job

this one would work great for that 26g tank

[jolson10450]

heck miztanks avoid the possible hassles of a hob over flow and drill the back and put a standard over flow box with bulkhead to drain water much safer IMO as you are not relying on a siphon to be maintained to work gravity dose the job

this one would work great for that 26g tank

i agree, just figured that is what she wanted, if you can, id drill it. ive had 2 overflow tanks now and the next one i get will for sure be drilled, i hate having my tank sit 5-6" off the wall just because the overflow box is behind it, such a PITA. functionality, the life reef overflows are the best. they guarantee you will keep siphon once it is started. another thing with HOB overflows is they tend to get a little loud, i had to put a DIY gurgle buster on mine.

[tazzy695]

i agree, just figured that is what she wanted, if you can, id drill it. ive had 2 overflow tanks now and the next one i get will for sure be drilled, i hate having my tank sit 5-6" off the wall just because the overflow box is behind it, such a PITA. functionality, the life reef overflows are the best. they guarantee you will keep siphon once it is started. another thing with HOB overflows is they tend to get a little loud, i had to put a DIY gurgle buster on mine.

LOL unfortunately unless you drill the bottom which she cant due to tempered glass you still have to space away from the wall for the plumbing

I am guessing here but chances are it is a factory built bow front tank and most of them use tempered on the bottom on the bow fronts and other similar size tanks

[MizTanks]

Drilling is not an option. No one around here to do it, I definitely won't try it, lol. My only option is a HOB and a prayer and guys like y'all here at CR!!