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Discussion Starter · #1 ·
Hi! This is my 29g planted tank about 2 weeks old.

Plants:
-Rotala wallichii
-Rotala rotundifolia
-Glossostigma elatinoides
-Blyxa japonica
-Ludwiga repens
-Red val
-Hornwort (submersum) - Just until algea goes down

-Still looking for echinodorous tennelus in empty spots and eleocharis acicularis that will go where the hornwort is
-The anubias barteri floating there is waiting to be rehomed

Fish:
-4 Otoinculus affinis
-7 Serpae tetras
-10-12 ghost shrimp

Substrate:
Soilmaster Select (charcoal)

Lighting:
-2x 65watt pc 6500k

DIY CO2

EI dosing







 

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If only Mel is tempted.:checkedout:
Nice tank, Dasmall.:thumbsup:
 

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joeshmoe said:
welcome back dasmall i remember u from a couple months ago :D
*Laughs out loud*:bluelaugh:
He's been visiting this forum regularly already.:mrgreen: Thanks, Dasmall.:thumbsup:
 

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That is a nice tank. So you say you have 2 2l bottle's of DIY CO2 in there. LOL I only have 1 for my 55 gallon. Which way are you putting it into the tank? Hooked to airstone? Into Filter Canister?
 

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how are you measuring PPM? i wouldnt mind knowing a lil more about how you monitor and regulate your c02 as i am working towards a DIY system.
 

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Discussion Starter · #16 ·
There are a lot of ways to measure CO2. One method I use is by measuring the pH and KH of your tank, and comparing it on a chart found here http://www.csd.net/~cgadd/aqua/art_plant_dosage_calc.htm. The table is on that site somewhere, I just can't find it now for the life of me. I suggest downloading the calculator and it will be there.

The other method is to test the pH of a sample of water, and let the same water sit for 24 hours uncapped and test again. If the pH has increased 1.0, then you have 30 ppm of CO2. But be careful with that, because a pH increase of .5 is not 15 ppm.
 
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