FAQ

This page is dedicated to the answers to some of the Frequently Asked Questions in the mail I receive about my reef.

In no way do I (or should anybody for that matter!) claim to be an 'expert' in this hobby, but I do communicate extensively with other successfull reef keepers, building off their opinions to form my own.

Topics:


Cost of setting up a tank and its maintanance
Not all money...
A great deal of time is expended to properly set up and take care of a reef aquarium, some of which includes filter and water changes, glass cleaning, periodic pump rebuilding, and of course 'gardening'...  I'd venture to guess I spend a solid 7-10 hours per week taking care of the tank.    Most of it is truely a "labor of love", though there are some stressful times.

Unfortunately, money plays a significant role in big hobbies, and this one is no exception...  Count on about $30 per gallon to set up a reef!

My aproximate costs, (in 1999 dollars) :
120gal AGA reef ready $600
Cabnet/canopy (DIY) $450
Lighting $500
Pumps $300
Calcium Reactor $250
Sump and plumbing $200
Electrical (GFI's, timers, plug strips) $200
Salt $50
RO/DI unit $200
Auto top-off $100
Temp controller $100
Test kits/refractometer $100
Liverock $800
Livesand $100
Misc. feed clips, thermometer, turkey baster, etc.
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~$4000  Not including any livestock!

...And it doesn't end there!!  Here are the  upkeep costs for my 120g broken into monthy payments:

Electricity - The pumps alone (return, recirculation, reactor, skimmer) draw about 300W 24/7=7000watt-hours. The lights (VHO, MH, PC) add  about 8000 w-h daily.  Heater, maybe 500.  So, the total for electric would be ~ 15 Kw-hours, or about $1.30 per day (@$.087/Kw-h)=$40 per mo
Additives- I used to go through a gallon of Bionic a month (~$30), but the Ca rxr only runs about $5 for CO2 and media ($15 every 3 mo).
Water- 1.3 gpd + 5 gal weekly purified water (runs about 60 gals per month).  Hmmm.... considering 1:4 RO efficiency, this adds up to about 250 gals/month only about  $.50 (@ 2.11/1000 gals).  The real cost hear is filter replacement, which is about $60/yr or $5/mo
Food- A good $10 in food per month.
Supplies- includes lamp replacement every 10 months ($200/10mo=$20/mo), periodic pump replacement, misc. supplies like GAC
lets say about $40

 Total for my tank: $100 per month UPKEEP costs!

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Reef Photography
Most of the newer pics on my site were taken using a Sony DSC-P3 2.8 meg camera on auto everything, although I will drop down a couple of stops to try and increase its limited lighting range (-e setting).  The CCD is very sensitive to the blue light, so I sometimes turn off the actinics before shooting.

I usually only use tank lighting, but sometimes at "night" or if I want brighter color I'll use the built in flash on the camera, shooting at a slight angle to the glass to get rid of reflection.  For full tank shots, I try and use a tripod, and spot metering to set exposure to the brightest section of the tank that I don't want to be washed out.

It takes a little practice to get the hang of it, but here's my experience:
-As said earlier, keep everything as still as possible for slow shutter speeds.
-Clean the glass (or acrylic) very well, both inside and outside
-Big one... Get rid of any reflections in the room.  I take all my pics when it is dark outside, and turn off all room lights.  If your camera is auto focus, it's important that it looks through the glass, or everything will be blurred.

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 Reef Tank Set up
Where did you get the plumbing for the hidden powerheads ? Marine Depot has the flared returns but they are 3/4 in. and the maxi jets are like 3/8s.
I believe it is  3/8" id vinyl tubing that fits right over the output of the maxis.  Then I ran the tubing up to a barbed elbow from HD, which had 1/2" FPT.  I got the 1/2" loc pipe fittings and stuff from www.championlighting.com, which included a MPT to 1/2"  adapter.
Where did you get the fixture (9w night light)? Does that small of lamp have a remote ballast?
I made the fixture;  a ballast for a small pc bulb is only a few bucks at a lighting store.  Doing it over, I would get the 13w lamp and ballast assembly from www.ahsupply.com.  It's pretty cheap, and a remote ballast.  Their lamps (red, white, or blue) are cheaper too.

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Dealing with Temperature
At what temperature do you run your reef at, and how do you deal with controlling it?
I like to run the tank at about 79 degrees F in the winter, and 82 degrees F in the summer.
I don't have a chiller to cool the water, and temp was a pretty big problem until I cut larger  exhaust slots in the enclosed canopy, and increased the (2) 3" fans to 4.5" fans both blowing in.  The tank runs about 6 degrees over room temp with the lights off.
The actinic run for 12 hours, and the MH for 10.5.

In the summer, I try to keep the house below 78.  In the winter, if the room temp falls below 67 the 150w heater can't keep up during the nighttime hours.

 If you don't have ac, then you should at least try to  keep the room air dry, because evaporation is reduced with higher humidity. I noticed a big difference in cooling efficiency between  76 moist and 76 dry room air (and in summer compared to winter)

If the tank water goes over the temperature setpoint,  I turn the fans on.  Currently, the canopy fans  run independent of the lights being on, and are only enabled by water temperature.    I built the canopy so that the fans blow room across the water (towards each other) and the heated/moist air exits at the top near the lights, so even when the lights are on with no fans there is convection cooling (a good feature in case the fans stop working).  When the fans and the lights are off, there can be condensation in the hood if the room temp is cooler, but it is pure water and doesn't cause damage that I can see.

The problem with leaving the fans on all the time is that you will evaporate when you really don't need to, and then the heater may come on- the power of cooling by evaporation is pretty significant.  I currently only have to top off about 1.3  gallons a day.

How far above your tank are the lamps and is there a cover glass?   In canopy or hanging?  I guess what I'm really asking is how do you keep temps acceptable as a whole without big money on a chiller?
The 175w MH are about 6" from the water, and the VHO actinic are about 4"

How often does your front of tank need coralline scraping?
About scraping the glass; if I keep nutrients high (corals look better, but more algae grows on glass) I use a magnetic scraper every day on the glass.  Once a month or so I'll scrape the corners with a plastic card or razor blade.  I find that the daily simple cleaning prevents heavier scraping.

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Furniture construction
1. I noticed your stand does not appear to have a rear center vertical or cross support.  Did you use a 2x6 across the back to compensate?

The pics aren't clear on this, but I put a 3/4" backing board on the inside of the back of the cabinet to keep the structure vertically rigid (to keep the "box" from becoming a parallelogram). This back piece still leaves 12" of the lower portion of the back open for wires, etc.  Unfortunately, by putting the board on the inside instead of outside, it did interfere with the overflow plumbing, and had to be notched out.

2. I have seen your diagram for the canopy and love the way it looks as well as its functionality.  Did you make the reflector portion for the metal halides or did you buy that as one piece?

I bought the reflectors from the lighting company, and trimmed/bent to get it to fit in the canopy.  The part I love the most about the canopy is the two doors that swing up for tank access.  Each one is not that heavy, and in most of the setups I see you have to lift the lights along with the top of the canopy.

3. How does the canopy sit on the tank-most have wooden strips of some sort but I noticed none in the picture.  It appears that the canopy is simple box construction with a piece cut out of the top for the reflector is this true?  Details if you can.

It is a simple box.  I built the canopy out of the materials left from the cabinet, which is what determined its height (lol).  The piece cut out of the top was to compensate for not allowing enough room in the main portion (a big oops), since the original box was only about 8" tall, and 12" is really needed for metal halide.  The side construction is out of 1x8 pine, which of course is really only 3/4" thick, and it rests directly on the tank. The top is partical board (poor choice!).  Everything is sealed in 2-part epoxy paint.

4.  Obviously you liked the 120 probably due to the increased front to back room.  Has this proved essential in the success and visual beauty of the tank?  Also I will be buying an All Glass tank because I prefer the curved overflow(s).  How have you liked your tank and do you have any opinions here?  My main concern with all glass is the top cross members and continual long term lighting.  Opinion?

I love the front to back space, although my LFS set up a 90 gal that looks great, especially if you don't use 1.5lbs/gal of live rock.  The main reason I went with the 120 was that I wanted to be able to view the tank from 3 sides, and the overflow took up too much room on the side of the 90.  Also, I liked the idea of having 2 overflows, because it is possible for one to "hang up" causing a big problem.
As far as the plastic cross piece, I coated it with wide white electrical tape, to reflect the UV light that might weaken it with time.

5. There is what appears to be a small square or circular hole on the right rear side of your stand what is that and what is it used for?

I have a 3" fan blowing out continuously through this hole.  It is near the ballast's (keeps heat from accumulating) and it also keeps the humidity down in the cabinet.

6.  I have looked at stands at 3 LFS and they don't have near the internal supports as yours or the stand that you referenced.(the 4x4 almost seam like overkill)

Yes, it probably was overkill, but it is strong! (I was a little paranoid of the thing falling down if the kids ran into it, and it does weigh about 2000lbs).  For a 90g, 2x4's are definitely strong enough.  Just use your common sense to build a strong box...
Points to consider:
-Most people leave the top of the cabinet open, with only the frame of the tank sitting on a 2x4 frame.  I decided to put an extra 3/4" particle board on top, mainly for extra structure, and to insure the tank is sitting on a perfectly FLAT surface.
-Keep your plumbing in mind so you don't do something like put a structural piece across the overflow or return holes (like I did).
-Try to keep the doors as big as possible.  Some people header the front top so there's no vertical board in the way of gaining access to the sump area.  I originally put a removable (fastened w/ brackets, no glue) front support, but I didn't want to seam the siding, so it is now permanent.

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Sump setup
What size tank did you use for the sump?  It appears to be a standard tank.
I used an AllGlass 20g, which I keep about 1/2 full.  If the return stops, the water level goes to the top, if the overflows stop, the main tank fills to the top.   This is the MINIMUM size for a 120.  A thirty would be my hindsight choice, maintaining the 10 g of volume with a little more tolerance.  I wanted as much room under the tank as possible, and the 20 has worked out well.  I had it drilled for a bulkhead which I use for the primary external pump.

I didn't want a complicated sump.  Just an area to put the pumps, heaters, and skimmer in, as well as a means of mech. filtration (opinions vary) and carbon (which I run 24/7).  1#/gal is an acceptable ratio by many.  I do have a ton of rock, but nitrates are 0 even with a dozen fish.  I may however take some out one day...

I currently live in a home with no means to run water directly to my tank for TOW do you have any suggestions for me.  The current small tank requires very little so this has not been a problem.  With the increased size and subsequent increased evaporation I need to figure something out.
I love the convenience of having water on-site.  It would be worth running the 1/4" tubing similar to a TV cable along the walls to have this feature!

In your sump did you just cut holes in the bottom of the dishpan to let water run into the sump itself?  Is there any support under the dishpan or is it just hanging on the ledge?
I cut the entire bottom of the dishpan out except for a 1/2" perimeter lip.  In this I tyrapped a piece of perforated eggrate which allows draining.  Very simple.

A lot of people are getting away from any mechanical filtration, so I only run 1/2 of the water through floss or cloth.  Always safer to stay somewhere in the middle, then on one of the extremes!

What brand of protein skimmer did you purchase with what pump
I have a Berlin Classic venturi skimmer, which I run off a Mag7 after trying the RIO 2500 and 3100.  This seems adequate, though I'm only pulling a few ounces a week out.

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 Circulation
What type of powerheads do you use in the tank & how many?
Besides the two returns outlets run from a MAG12 and spray bar powered from the RIO2500, I have 2 maxijet 1200's.  There is one located within each overflow, and plumbed out to the display.  I try to refrain from powerheads hanging all over the tank, because it's supposed to be natures beauty, not a science experiment hehe.

I've never been thrilled with the circulation in this tank.  It seems that I need to keep upping pump size in order to keep flow as the corals grow.  Not sure what my next steps here will be.

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RO Unit setup

How did you set up your RO/DI unit?

I started off just plumbing a water line to my TWP in the cabinet, but was using up the DI too fast (3 weeks), so I finally broke down and got an RO.  I got a great deal on a unit on Ebay for $130 complete with a drinking water kit and shipping.  Now  the TWP cartridge lasts 6 months!

 I "T"d the ROoutput to both the fridge and the tank, using the milky white poly tubing.  I currently fill my wc buckets at the tank, but you could do some nifty plumbing to be able to do it in the basement, or in conjunction with a float switch

What I ended up doing in the cabinet was drilling a hole big enough to run a shutoff valve through, and then run a barbed hose to

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Cooling Fans

For the electrically ignorant how do I now wire these guys in series (to slow the fans down)?
Follow the leads from each fan- at some point they will join together at a plug wire.

For AC fans, you take the two wires that come out from the wall plug and...
In parallel wiring, each fan has two wires that respectively join to these.
In series, the power runs through one fan and into the other, which effectively cuts the voltage cleanly in half.

I decided it was easier to draw a diagram

 NOTE:  I am now using DC fans in all locations.  They are 24vdc, but I run them all off a 15v powersupply, which keeps them quiet.

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