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Automated live food dosing system idea for reef tank

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T-Bone Tyrone

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Reply #15

Instead of a dosing pump you could use an ATU set up, but have the pump running slower, better components instead of the doser running for minutes at a time?

RE the rotis and brine shrimp etc, you could have two or more zoo chambers, and up the number of siphons, similar to what Greame is saying about having more than one type of phyto.

Will there not be a siphon break once the water drops below the siphon tube?

You'd need a way on removing sediment from the bottom of the phyto and zoo chambers.
I should really sort this out!!

Mike

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Reply #16

Instead of a dosing pump you could use an ATU set up, but have the pump running slower, better components instead of the doser running for minutes at a time?

I'm not sure that'd work. It'd just constantly run, and I don't think you could get it running slowly enough.

Will there not be a siphon break once the water drops below the siphon tube?

Yeah, that's the point. The siphon does break, that stops it until the dripping causes the level in the first bottle to rise to the top of the peak in the siphon tube. Once the water level reaches the top of that tube, the siphon restarts and flows until it breaks again.

You'd need a way on removing sediment from the bottom of the phyto and zoo chambers.

I think the airstone should keep things stirred up pretty well.

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T-Bone Tyrone

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Reply #17

All bases covered!

Think I'd go with the drip over the doser feed though, seem a wast of a doser really.
I should really sort this out!!

Mike

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Reply #18

Yeah, maybe use a proper drip regulator, rather than just crimping or tieing an airline.

While these still crimp the line, they have accurate and linear markers so you can be pretty precise with it.

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HK_Fuey

  • Graeme
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Reply #19

I see this ending up being a series of bottles, that surge into one another, then surge into the tank.  For each surge pipe, you could split it, so some surges directly into the sump, and the rest into the next bottle (to get the same effect they were aiming for with the top model).  There could be a tank above them that drip feeds the phyto bottles, and you could feed the tank with an ATU from the sump.  As the drip feed drops the level, the ATU tops up the salt water reservoir.  You could vary how big the containers are at each stage and vary how much to surge out by adjusting the surge pipe height.

You can use upturned bottles so that detritus falls into the cone shape at the bottle, and have an airline feed into the bottom of the bottle to create an airlift as it arrived there, and to aerate the container to keep the critter alive and stop them settling on the bottom.  There would always be some near the top to surge to the next stage that way.

HK_Fuey

  • Graeme
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Reply #20

Been watching this guys videos.  Seems he has a pretty good method for phyto and rotis:


Cheapest place I could find those caps was here:
Leakage Proof Straw Cap for Drinking Bottles (2.7cm) - Random Color – Free Shipping - DealExtreme

Mike

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Reply #21

Cheapest place I could find those caps was here

Just make em? If you drill a neat hole in a bottle top about 1mm narrower than a piece of silicone tubing, forcing the tubing through alone should be a good seal, and a smear of silicone for good measure?

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HK_Fuey

  • Graeme
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Reply #22

Yes, I'm not planning to buy anything much yet.  Just some airline tubing and some accessories to turn the air on/off, and split the line, etc.  I'll do as you say with the caps and see if anything better is needed - maybe not.  I'm thinking of using 1lt Schweppes style bottles so there are no ledges for stuff to settle on.  Probably going to have a go at phyto on its own first, then brine shrimp, as I already have some spare eggs, then rotifers, then mysis (if I can find eggs anywhere - not looked).  Not sure where to add pods into the mix yet.

HK_Fuey

  • Graeme
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Reply #23

@Reefphyto would love to hear your views on this.  Might just have to take you up on the 10% off offer for a few bits and bobs to give this a try  :grin:

HK_Fuey

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Reply #24

Another idea to add to the mix.  I got it from here:
Reef Central Online Community - View Single Post -  Continuous feeding methods
Quote
I ran across the Zinn Plankton reactor in a description of one of the older TOTM (June 2003) threads. It appears to be an elegant way to culture phyto- and zoo- plankton in the same device. It's basically a small tank, divided in two, with a small mesh screen in the divider that is too small to pass either zoo- or phyto- plankton (n.b. - won't pass EITHER culture). On the phytoplankton side, there is an air-lift pump constantly pumping a small amount of the phyto culture through a second, suspended mesh screen that is large enough to pass the phyto, but too small to pass any zoo. This airlift provides circulation, promotes gas exchange, and by passing the output through an elevated (out of the water) filter, will trap and kill any zoo- that find their way into the wrong side of the tank. On the other side of the divider, the zoo culture is active. A second airlift pump will periodically pump some of the phyto culture over the divider and into the zoo side, to keep them fed. Waste byproducts from the zoo side will pass through the ultra-fine filter in the divider and act as nutrients for the phyto. With the addition of light for the phyto, and a small amount of fertilizer (orchid food appears to be recommended), the system can supposedly run continuously for months, maintaining a healthy zoo culture (which can either be manually exported to a display tank, or connected by another airlift pump on a timer, if the culture can gravity feed into the display).

Caveat--- this is all based on my best efforts with google translate and some older thread searching. I plan on giving this a try (in a 5 gallon tank in the hood of my display) when I get my new tank set up, but can't vouch for it.

Here are a few of the links I mined for this information:

ZC-Aquarientechnik Planktonreaktor
Artemia und Planktonreaktoren
Tank of the Month - June 2003 - Reef Keeping Online








The tank got featured as TOTM here:
Tank of the Month - June 2003 - Reef Keeping Online

HK_Fuey

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Reply #25

@mars109 I just saw your cultures.  Any thoughts on all this then?

HK_Fuey

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Reply #26

Prompting a few people to comment now the email notifications are working
@mars109 @Reefphyto
 

HK_Fuey

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Reply #27

I made this earlier:

It uses the return to push water slowly through some airline tubing as a drip feed to an ice-cream tub, which will contain rotifers and pods.  As it reaches the top, the surge starts and drains about a fifth of the tub into the DT.  Hopefully, this will act as a water changer, and auto feeder, but will leave and eggs and never feed all the rotis/pods in one go.  If I get the balance right,I hope to leave enough behind to allow for the culture to last a good while before running out.  I will add concentrated phyto as food source, which will also partially get surged out, so will add a bit more than required, and it will dose the DT too  8D
Last Edit: Jul 6, 2015 8:05:36 pm by HK_Fuey

HK_Fuey

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Reply #28

I made this earlier:

It uses the return to push water slowly through some airline tubing as a drip feed to an ice-cream tub, which will contain rotifers and pods.  As it reaches the top, the surge starts and drains about a fifth of the tub into the DT.  Hopefully, this will act as a water changer, and auto feeder, but will leave and eggs and never feed all the rotis/pods in one go.  If I get the balance right,I hope to leave enough behind to allow for the culture to last a good while before running out.  I will add concentrated phyto as food source, which will also partially get surged out, so will add a bit more than required, and it will dose the DT too  8D
This worked well for a while, but the copepods didn't breed as quickly as they were removed, so worked short term, but not long term.  I guess surging less, or having a larger volume to start with would solve it.  It would be trial and error to get it right.  Good to spreading out any live foods though.

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