Elliott's Reef: 900g DT , 400g sumps

AMAZING! I don't think I have ever seen a feeding system like that, you gotta patent it or something quick.:)

Do you have an automatic water change setup?

thanks GustavoAZ!

Yes, the automated water change works as follows:

I have a 300g seawater reservoir that is "on demand" via a float switch in the sump. As dirty water is pulled from the system via the skimmers it is replenished with clean seawater from the reservoir. It averages about 5-10% water change per week. Evaporate loss is replaced separately by a dosing pump from a 300g RO/DI reservoir.
 
thanks GustavoAZ!

Yes, the automated water change works as follows:

I have a 300g seawater reservoir that is "on demand" via a float switch in the sump. As dirty water is pulled from the system via the skimmers it is replenished with clean seawater from the reservoir. It averages about 5-10% water change per week. Evaporate loss is replaced separately by a dosing pump from a 300g RO/DI reservoir.

Interesting. My ATO would battle with the clean water coming in from the reservoir. How is the float valve for the seawater reservoir set up so that it matches the amount of dirty water leaving the skimmers?

Your corals look great!
 
Interesting. My ATO would battle with the clean water coming in from the reservoir. How is the float valve for the seawater reservoir set up so that it matches the amount of dirty water leaving the skimmers?

Your corals look great!

Your ATO draws from a fresh water reservoir, while my ATO draws from a fresh seawater reservoir. So as my skimmers remove dirty seawater from the system it is automatically topped off via the ATO with fresh seawater. I compensate for evaporative loss by running a dosing peristaltic pump from my fresh water (RO/DI) reservoir. Make sense?
 
Hi Elliot:)

This tank is truely a peace of art! I love your aquascape
and your coral selection!
A beautiful tank! Congratulations!

Just a question you said you would control all 12 Ai Sols via the Apex,
do you feel in any way districted or is the Apex your weapon of
choice for the lighting control?

Greetings
Mathias
 
Hi Elliot:)

This tank is truely a peace of art! I love your aquascape
and your coral selection!
A beautiful tank! Congratulations!

Just a question you said you would control all 12 Ai Sols via the Apex,
do you feel in any way districted or is the Apex your weapon of
choice for the lighting control?

Greetings
Mathias

thank you for your kind words Mathias

there are so many lighting options today that it's hard to say which one would be my choice without trying them, however the AI Sol Blue's have provided more than enough light and spectrum, controlling them with the Apex system requires the use of their VDM module, which gives very good control, I am very pleased with the results :D
 
Elliott,
I love your tank and the build is amazing. I am interested in how high your lights are mounted above the water line and what settings you are running. I have a tall tank and have been experimenting with my AIs. I have 10 units about 18 inches above the water line and I am using an Apex controller. What percentages and times are you using? Thanks for taking time to document and to respond.
 
Elliott,
I love your tank and the build is amazing. I am interested in how high your lights are mounted above the water line and what settings you are running. I have a tall tank and have been experimenting with my AIs. I have 10 units about 18 inches above the water line and I am using an Apex controller. What percentages and times are you using? Thanks for taking time to document and to respond.

many thanks Osteoclast

I'm running 12 AI Sol Blue's, on a light rack sitting 10" above the tank, so about 12" above the water line

10 of them are at 40% White and 85% Blue: these run for 8 hrs
2 of them that cover the red carpet anemone are 100% White and 100% Blue: these run for 12 hrs

now measuring PAR is not entirely accurate with LED's however I get 120 PAR on the sand bed with settings of just 40% White and 85% Blue

so I would have no use with higher intensity LED fixtures, the 75 Watt AI's are more than enough
 
Thanks, mine are at 35w/55b/55rb. I have not checked PAR. I may go up slightly on the blue and royal blue. I ramp up and down over 3 hrs each. Currently have max settings for 6 hours. I am glad to see your percentages are not far off mine.
 
Thanks, mine are at 35w/55b/55rb. I have not checked PAR. I may go up slightly on the blue and royal blue. I ramp up and down over 3 hrs each. Currently have max settings for 6 hours. I am glad to see your percentages are not far off mine.

yes, similar :thumbsup:

all my ramp up and down periods are 30 mins
 
tank50.jpg


tank12.jpg
 
Your ATO draws from a fresh water reservoir, while my ATO draws from a fresh seawater reservoir. So as my skimmers remove dirty seawater from the system it is automatically topped off via the ATO with fresh seawater. I compensate for evaporative loss by running a dosing peristaltic pump from my fresh water (RO/DI) reservoir. Make sense?

Maybe I'm just slow. :)

Makes sense if I could figure out how the dosing pump knows how much water has evaporated.

You are correct that my ATO is drawing fresh RO/DI water and is used to compensate for evaporation.

Those skimmers must draw off a ton of skimate if you're seeing a weekly 5-10% water change rate.

Thanks for taking the time to answer questions!
 
Maybe I'm just slow. :)

Makes sense if I could figure out how the dosing pump knows how much water has evaporated.

You are correct that my ATO is drawing fresh RO/DI water and is used to compensate for evaporation.

Those skimmers must draw off a ton of skimate if you're seeing a weekly 5-10% water change rate.

Thanks for taking the time to answer questions!

I just estimate what my daily evaporate rate is, about 8 g / day, and dose that amount, then adjust up or down depending on the SG readings, it's really very easy to do

I have the large RK2 skimmer running wet, so it draws off quite a bit

The smaller Barr's run a dryer skimmate
 
I have the large RK2 skimmer running wet, so it draws off quite a bit

The smaller Barr's run a dryer skimmate

Elliott, your tank is an inspiration to me! I have two questions so I'll start with this:

Why do you run 2 skimmers one wet and one dryer? I get the RK2 being used to filter and facilitate auto water changes (very nice idea). What do you gain with the Barr?

Appreciate your time.
 
Second question (or set of questions):

I would like to replicate your refrigerator/freezer feeder but am still missing some pieces. I have spent a goodly amount of time looking at the pics and your explanations but I am not a technical guy (I teach rhetoric and Great Books for a living!) so explanations have to be typed slowly and clearly for me to get it.

Missing pieces for me:

Is the pool switch running a motor under the tray and inside the cut out of the base holding the tray? If so, what is the motor you are using?

Is your Apex running the hairdryer? If so, how do you coordinate it with the pool switch?

It sounds like you are very happy with the 1" feeder pipes, with a year plus experience is that the size you would continue to recommend?

I see four red wires coming into the fridge. One I assume goes up to your motor. What are the other three doing (hidden by the large pvc pipe)? Peristaltic pumps?

And finally (thanks for you patience) if you have to clean the pipe dropping down through the fridge for some reason you could simply move the feeder in the freezer and run some warm salt water down the pipe, correct?
 
Second question (or set of questions):

I would like to replicate your refrigerator/freezer feeder but am still missing some pieces. I have spent a goodly amount of time looking at the pics and your explanations but I am not a technical guy (I teach rhetoric and Great Books for a living!) so explanations have to be typed slowly and clearly for me to get it.

Missing pieces for me:

Is the pool switch running a motor under the tray and inside the cut out of the base holding the tray? If so, what is the motor you are using?

Is your Apex running the hairdryer? If so, how do you coordinate it with the pool switch?

It sounds like you are very happy with the 1" feeder pipes, with a year plus experience is that the size you would continue to recommend?

I see four red wires coming into the fridge. One I assume goes up to your motor. What are the other three doing (hidden by the large pvc pipe)? Peristaltic pumps?

And finally (thanks for you patience) if you have to clean the pipe dropping down through the fridge for some reason you could simply move the feeder in the freezer and run some warm salt water down the pipe, correct?

the pool timer has a built in motor, it's fairly durable as it's made to run a pool motor, you can buy these any any pool supply store, they are fairly standard, get the plastic housing that comes with it, you will notice from the picture that I modified the housing for use as a holder/stand for the timer/motor, which I glued down to the freezer in the center of the trays with silicone glue, I also used a little silicone glue to secure the timer/motor to the plastic housing so it would not move

you can see the cut outs in the rotating tray that accept the timer clips and pointer, which I turned up to better catch the tray as it turns

so the pool timer runs at a constant speed, so I timed how long it takes for one pvc food unit to move to the next, and set one of the outlets on the Apex to run that amount of time for one feeding, the Apex program looks like this:

Fallback OFF
Set OFF
If Time 08:00 to 08:45 Then ON
If DoW S-TWT-S Then OFF

which means it runs for 45 mins from 8 to 8:45 on Mondays and Fridays (I'm currently feeding mostly by hand to it only feeds twice a week)

the hair dryer runs for one minute to ensure the frozen food is released, so I set another outlet on the Apex to run for one minute and set it up so it runs at the end of each feeding, the Apex program looks like this:

Fallback OFF
Set OFF
If Time 08:45 to 08:47 Then ON
If DoW S-TWT-S Then OFF

which means the hair dryer runs for 2 minutes from 8:45 to 8:47 on Mondays and Fridays, which you will notice is at the end of each feeding cycle

I have found the 1" feeding pvc units work quite well and hold plenty of food, I would not change that size

So, yes, I have four electrical extension cords coming in the side of the fridge, two go up to the timer/motor and hair dryer, the other two go to three peristaltic pumps to deliver the liquid foods (two of the peristaltic pumps are plugged into one cord, the other one is plugged into a separate cord), all three peristaltic pumps run for 25 mins as follows:


Fallback OFF
Set OFF
If Time 21:00 to 21:25 Then ON
If DoW SM-W-F- Then OFF

so they run from 9 to 9:25 PM on T, Th and Sat

and when the liquid feeding starts the skimmers are turned off for 8 hrs and restart in a staggered way as follows

Fallback ON
Set ON
If Outlet FeedA_13_2 = ON Then OFF
Min Time 530:00 Then OFF

so when feeding outlet is on (13_2) the skimmer is off and stays off until 5:30 AM, I have the other two skimmer set up in a similar way except they each restart 30 mins later than the other

hope this all makes sense :D
 
Elliott, your tank is an inspiration to me! I have two questions so I'll start with this:

Why do you run 2 skimmers one wet and one dryer? I get the RK2 being used to filter and facilitate auto water changes (very nice idea). What do you gain with the Barr?

Appreciate your time.

I have three skimmers for the following reasons:

running wet skimmate (RK2) and others dry (Barrs) I get a little different organic extraction, there are many good threads on RC that discuss this

I have found skimmers to be very finicky, meaning you set them but they don't perform the way you set them for long because detritus collects in the neck, salt creep in the air intact, etc., etc. So running several gives me a greater chance that one of them will be in tune at any given time

because I use skimmate to automate my water changes it gives me the flexibility to run one very wet at times (RK2) to better facilitate a water change, it's amazing that when I set the RK2 to run just a little wet, meaning bubbles bursting at the top of the neck but not overflowing extensively, I can go through 300g of seawater in 24 hrs!! so I have to be a little careful, I have low water shut offs on all the skimmers, the RK2 skimmate goes down the drain while the Barr's go into waste containers with auto shut offs when full
 
I have three skimmers for the following reasons:

running wet skimmate (RK2) and others dry (Barrs) I get a little different organic extraction, there are many good threads on RC that discuss this

I have found skimmers to be very finicky, meaning you set them but they don't perform the way you set them for long because detritus collects in the neck, salt creep in the air intact, etc., etc. So running several gives me a greater chance that one of them will be in tune at any given time

because I use skimmate to automate my water changes it gives me the flexibility to run one very wet at times (RK2) to better facilitate a water change, it's amazing that when I set the RK2 to run just a little wet, meaning bubbles bursting at the top of the neck but not overflowing extensively, I can go through 300g of seawater in 24 hrs!! so I have to be a little careful, I have low water shut offs on all the skimmers, the RK2 skimmate goes down the drain while the Barr's go into waste containers with auto shut offs when full

Wow!

Boy do I have some research to do to get up to speed with this system!

Newbie that I am!
 
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