ad-button
Reply
 
LinkBack Thread Tools
Old 12-24-2009, 07:36 AM
  #1
Torch Coral
 
NASAGeek's Avatar
 
Join Date: Nov 2009
Location: Houston, TX
Age: 49
Posts: 1,180
Skin: Mint
Karma: 97245
NASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond repute


3reefer 
contributor 
3link 
gallery
Default Calcium Reactors versus 2 part dosing

Now, let's start by saying that I barely know enough to even ask this question so please bare with me.

I am reading and reading and gradually getting there but I am not yet at a point that I can apply everything that I am learning. It is also difficult because I am trying to learn and understand all this before buying and setting it up. It is kind of like taking a chemistry class without taking a lab with it.

SO... Corals and organisms in the tank consume various nutrients. The aquarists job is to provide those nutrients and keep the water in balance. I have read fundamentally of three methods: 1) Direct additives commercially produced. 2) Dosing and 3) Reactors.

I understand GFO and GAC Reactors. They seem to basically be a form of chemical filtration to remove phosphours and other 'bad things'. I wish they weren't called reactors. Since Calcium Reactors and GFO/GAC Reactors don't seem to be the seem thing at all.

Calcium Reactors have me confused. Seems like adding commercially produced additives would be cost effective for very small systems but probably quite expensive for moderate and large systems. It also seems that additives would "spike" various parameters rather than keeping them constant at the desired level. Dosing makes sense to me... adding buffer for Alk, calcium, Mg, in the proportions needed by your tank to keep them constant. Calcium Reactors don't make sense to me. If you are going to end up dosing for Alk, Mg, and others, why would you set up a separate mechanism for calcium??? What is the benefit and compared to dosing?

Long post... sorry.... can someone help me continue my education???

Merry Christmas Eve,
Mark
NASAGeek is offline   Reply With Quote Top
 
Click Here!
Old 12-24-2009, 08:17 AM   #2
Great Blue Whale
 
jonjonwells's Avatar
 
Join Date: Dec 2008
Location: SE Kansas
Age: 34
Posts: 2,808
Skin: Mint
Karma: 3338169
jonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond repute


supporter 
3reefer 
 
gallery
Default

If you are running a heavy SPS tank or have clams, it can replenish CA/MG more consistently than dosing. It is a mostly set and forget system. For someone who travels, dosing is much harder. A calcium reactor once dialed in doesn't require the daily maintenance that dosing does.
jonjonwells is offline   Reply With Quote Top
Old 12-24-2009, 09:01 AM   #3
Feather Duster
 
robwerden's Avatar
 
Join Date: Jun 2009
Location: Liberty Hill, TEXAS
Age: 43
Posts: 204
Skin: Mint
Karma: 161366
robwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond reputerobwerden has a reputation beyond repute


 
gallery
Default

Id buy one if they were less expensive. I so far have not been able to justify it. Also I sometimes have to back off on alk because the hardness gets to high, I also dose mag so I worry about salinity building up.
Im going to stick to doses until I understand how to control all 3 aspects.
robwerden is offline   Reply With Quote Top
Old 12-24-2009, 09:24 AM   #4
Giant Squid
 
Peredhil's Avatar
 
Join Date: Aug 2008
Location: Texas
Age: 35
Posts: 5,182
Skin: Classic
Karma: 6610130
Peredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond repute


3reefer 
3link 
gallery
Default

Quote:
Originally Posted by jonjonwells View Post
If you are running a heavy SPS tank or have clams, it can replenish CA/MG more consistently than dosing. It is a mostly set and forget system. For someone who travels, dosing is much harder. A calcium reactor once dialed in doesn't require the daily maintenance that dosing does.
I don't know why people have this impression. If you setup auto dosing, it is very much set and forget. I haven't messed with my autodosing unit in months and my params are very stable.

If you automate dosing it is no harder than a reactor. Dosing, once dialed in, does not need any daily maintenance whatsoever.
Peredhil is offline   Reply With Quote Top
Old 12-24-2009, 09:26 AM   #5
Giant Squid
 
Peredhil's Avatar
 
Join Date: Aug 2008
Location: Texas
Age: 35
Posts: 5,182
Skin: Classic
Karma: 6610130
Peredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond repute


3reefer 
3link 
gallery
Default

McDonald, we recently went over a lot of this in this thread. Instead of rehashing it, might want to give this thread a read:

2 part dosing vs. Reactors
Peredhil is offline   Reply With Quote Top
Old 12-24-2009, 09:53 AM   #6
Torch Coral
 
NASAGeek's Avatar
 
Join Date: Nov 2009
Location: Houston, TX
Age: 49
Posts: 1,180
Skin: Mint
Karma: 97245
NASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond repute


3reefer 
contributor 
3link 
gallery
Default

Great thoughts.... I am leaning towards automated dosing... off to read the other thread.

Thanks
M
NASAGeek is offline   Reply With Quote Top
Old 12-24-2009, 10:23 AM   #7
Great Blue Whale
 
jonjonwells's Avatar
 
Join Date: Dec 2008
Location: SE Kansas
Age: 34
Posts: 2,808
Skin: Mint
Karma: 3338169
jonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond reputejonjonwells has a reputation beyond repute


supporter 
3reefer 
 
gallery
Default

The reason I stated that is the ability for the system to accommodate more usage with no manual adjustment. I do realize that an auto doser is a very effective way of doing it.
jonjonwells is offline   Reply With Quote Top
Old 12-24-2009, 11:22 AM   #8
Giant Squid
 
Peredhil's Avatar
 
Join Date: Aug 2008
Location: Texas
Age: 35
Posts: 5,182
Skin: Classic
Karma: 6610130
Peredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond reputePeredhil has a reputation beyond repute


3reefer 
3link 
gallery
Default

the 'grow out' side of it... and the way a reactor auto adjusts... this is true, but I think it's an overrated argument.

i haven't had to adjust my doser timers since I got it dialed in. This would be about August. Since then, I have had growth and the addition of one SPS frag, candy canes probably something else.

By the time I will need to go and increase my timer by one second per day (an exceedingly easy task), I would have had to change media on a reactor (every 6 months right?) and probably a CO2 can. This task in a reactor setup is far more intensive (at least how I picture it, never have done it) than adding a second here or there to an autodoser timer.

It's not like the Ca needs of our tanks is growing by ml's every day. The self adjustment aspect of a reactor... I just don't really see that as a big pro over autodosing.
Peredhil is offline   Reply With Quote Top
Old 12-24-2009, 12:10 PM   #9
Torch Coral
 
NASAGeek's Avatar
 
Join Date: Nov 2009
Location: Houston, TX
Age: 49
Posts: 1,180
Skin: Mint
Karma: 97245
NASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond reputeNASAGeek has a reputation beyond repute


3reefer 
contributor 
3link 
gallery
Default

SO that was an awesme thread.... I decided on automated two-part doing.

Thanks
Mark
NASAGeek is offline   Reply With Quote Top
Old 12-24-2009, 02:21 PM   #10
Giant Squid
 
AZDesertRat's Avatar
 
Join Date: Jul 2009
Location: Phoenix AZ
Age: 56
Posts: 3,685
Skin: Classic
Karma: 13510713
AZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond reputeAZDesertRat has a reputation beyond repute


 
gallery
Default

After owning a calcium reactor I wouldn't go back to dosing for all the money in the world. No buying bulk chemicals, no mixing up batches of chemicals, no filling containers, almost zero maintenance etc with the reactor. Granted bulk chemicals are more available today and less expensive but its still more work than setting and forgetting the drip rate and buble count on a reactor and adding calcium media and filling a CO2 bottle every 9 to 12 months. The only thing I do is clean a small drip valve maybe once wvery 3 or 4 weeks and that takes about 30 seconds.
AZDesertRat is offline   Reply With Quote Top
 

Click Here!

Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2 part dosing vs. Reactors tatted4ever Water Chemistry 163 02-21-2013 04:28 PM
Attn Wal-Mart Shoppers Robman General Reef Topics 14 02-08-2009 08:29 PM
Why am I dosing SO Much - Iodine, Purple Up, Calcium, Kent Essential Elements....... ALW Water Chemistry 28 10-22-2008 09:29 PM

Join 3reef Aquarium Forums