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I'd like to dose only my Florish Excel using such an IV Bag device.
for my 29gal I should be daily dosing under a cap full, or 3-4ml.
(accept after a water change when I will manually dose more)

I can get regular hospitable fillable bag, tubing and thumb clamp;
~$5
~$25
or I can get a small Kent Aquadose that pet supply websites sell.
(mechanical or DIY dosers do not interest me at this time)

I assume neither of these devices are capable of dosing such a
tiny amount over a 24 hour period, so I figure I will have to dilute
the Excel with water, and dose the water+excel mixture daily.

I assume the distance that the holding tank or bag is mounted
above the thumb clamp, effects the pressure the liquid flows.
Will that matter if my mounting choices are within a yard high?

I assume that dosing the majority of my excel solution while the
lights are out will not reduce it's effectiveness while they are on?
My Canister filter media is only physical, biological, Purigen no UV.

I assume that one of the above thumb clamp apparatus will dose
from full to empty over the course of an entire week, thus I would
like to confirm this by knowing how LITTLE can drip out per day.

I assume excel clear liquid will not clog the thumb clamp over time,
however I notice Excel crystal powder on my current bottle cap,
how badly will crystallization of Excel once dry, effect my doser.

Can anyone who has attempted this dosing solution, or carefully
considered it, address my assumptions and shared experiences.
 

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In my reefkeeping days, I used both devices. Suffice to say, neither provided adequate control. What puts you off from mechanical means? Cost? I tried IV bags and an aquadoser before giving up and going with a more rubust Pro Doser. If you really want control, there is no substitute for a peristaltic pump like a litermeter.



I can get regular hospitable fillable bag, tubing and thumb clamp;
~$5
~$25
or I can get a small Kent Aquadose that pet supply websites sell.
(mechanical or DIY dosers do not interest me at this time)
I might still have my aquadoser somewhere in storage, but I think I tossed it. I'll give you mine if I still have it.


I assume neither of these devices are capable of dosing such a
tiny amount over a 24 hour period, so I figure I will have to dilute
the Excel with water, and dose the water+excel mixture daily.
Correct. Neither are capable of fine control.


I assume the distance that the holding tank or bag is mounted
above the thumb clamp, effects the pressure the liquid flows.
Will that matter if my mounting choices are within a yard high?
Maybe. I found drip rates a little easier to adjust when the reservoir was mounted higher.


I assume that dosing the majority of my excel solution while the
lights are out will not reduce it's effectiveness while they are on?
My Canister filter media is only physical, biological, Purigen no UV.
I can't say for sure, but I don't see how it would.


I assume that one of the above thumb clamp apparatus will dose
from full to empty over the course of an entire week, thus I would
like to confirm this by knowing how LITTLE can drip out per day.
I couldn't consistently achieve slower flow than ~ 1 drop/second. I'll let you do the math, but I had to clean/refill every couple days at the most. Increased capacity was the reason I bought an aquadoser after using IV bags.


I assume excel clear liquid will not clog the thumb clamp over time,
however I notice Excel crystal powder on my current bottle cap,
how badly will crystallization of Excel once dry, effect my doser.
With slow flow, the valve is very susceptible to clogging. I have never used excel, but kalkwasser debris plagued my setup.


Can anyone who has attempted this dosing solution, or carefully
considered it, address my assumptions and shared experiences.
In short, I think the hassle outweighs the benefits. I have a bunch of equipment laying around (which, thinking about it, needs to be sold) that I just don't use. Automatic dosing certainly has its place within the hobby, but IV bags and aquadosers are a PITA.
 
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