Frag Tank Advice

Stolireef

Active member
Over the past few months, I've been giving some serious thought to setting up a frag tank. Unfortunately, due to the placement of my display, the frag tank cannot be linked in any way (other than perhaps to my Apex) to the display.

The goal here is to set up a very low maintenance 40 gallon breeder. The tank's only purpose will be to grow out frags since I don't love the look of the frag rack in my display. There will be perhaps one or two fish in the tank for algae control but nothing else other than frags so an extremely light bioload.

Now for the real challenge. I want to bring this setup in at under $400. Here's how I want to set it up.

Tank and Sump: 40 Gallon breeder bare bottom with egg crate frag racks. Siphon overflow (or I may drill for in tank overflow) to a 20 gallon sump with live rock. I need to buy the tanks but it looks like there are plenty of used ones around and pretty cheap (or I can wait for the dollar per gallon sale). Thinking about $75 for the tanks.

Stand: If I can find one cheap, buy it but otherwise, I can build one (I've done it a couple of times now). I can definitely build it for $50.

Water Movement: Modest sized return pump (probably a Sicce). Couple of maxijets in the tank for flow. $75

Light: I have a 400W PFO ballast so all I would need is the wiring harness and a pendant. Used, hopefully $75 or less.

Dosing: Likely set up a gravity fed two part Ca/kH doser. Never built a gravity fed one before but costs should be close to nil.

Filtration: None. With such a low bioload, I don't think I'll need a skimmer. If the need arises, HOB Remora, but I'd really like to avoid this. $75-$100 for the live rock.

Love to hear some criticism and/or suggestions. Thanks.
 
My only comment is I would think you could do without the doser (of course, you list that as no cost). Depending on the frags, I would think using limewater in your ATO would keep up with Ca and Alk...

Other than that, I think it's a pretty solid plan...
 
My only comment is I would think you could do without the doser (of course, you list that as no cost). Depending on the frags, I would think using limewater in your ATO would keep up with Ca and Alk...

Other than that, I think it's a pretty solid plan...

Glad you mentioned ATO. I completely forgot about that. I'd need to tee something off my current RO/DI system. Shouldn't be rocket science but then again...
 
Could you maybe skip the sump. Use a 20 gal long (shorter tank) use an ATO with Kalk and just do a 5-10 gal water change once a week. Maybe put some live rock rubble under the frag rack. Might be alot easier.
 
can you run water slowly from your DT? if so you won't have to worry about skimming or keeping separate parameters, and if you replenish DT with fresh seawater will serve as continuous water change :)

in addition, your frags will grow out with same parameters as DT so transfer is easy
 
can you run water slowly from your DT? if so you won't have to worry about skimming or keeping separate parameters, and if you replenish DT with fresh seawater will serve as continuous water change :)

in addition, your frags will grow out with same parameters as DT so transfer is easy

Unfortunately, I can't. Unfortunately, the display is located in such a way that it just can't be connected to the frag tank. Now, if I could convince my wife to allow me to relocate the washer and dryer, it would be a different story. Such is life.
 
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