View Full Version : 20 gallon high lighting

01-16-2010, 12:59 PM
I'm new to this board. I'm setting up a planted 20g high, And will be using a 24 " Nova extreme fixture with 2 t5ho 24w bulbs be alright ?

Larry Bugg
01-16-2010, 01:41 PM
You will need Co2 with that light.

01-16-2010, 02:00 PM
Can I use a diy co2

01-16-2010, 03:17 PM
I use DIY CO2 in much larger tanks...so you should be able to:

2 liter plastic juice container. Airline tubing coming through hole you make in the cap (Seal around the hole with silicone).
2 cups sugar
1 teaspoon yeast
Feed output of airline tube into a filter intake if possible.
hould last appx 2 weeks


01-16-2010, 03:42 PM
any other tips ?

01-16-2010, 05:29 PM
A drop checker would be a good investment, as it will allow you to see if your DIY setup is producing adequate CO2 levels in the water.
I hope you have a fertilization routine chosen, as you will need to dose at least potassium and micronutrients, even with a large fish load, and you may need to dose nitrates and phosphorus as well. API makes a nitrate test kit that is decent, and seachem has a phosphate test kit. EI dosing would also work and eliminate the need for test kits.

01-16-2010, 06:17 PM
Geo what is EI dosing

01-16-2010, 06:58 PM
EI dosing is a system where the tank is dosed with all the nutrients the plants will require on a daily schedule with large water changes each week to reset nutrient levels in the water. That is, the large weekly water changes prevent accumulation of nutrients the plants are using up as quickly as they are added.
I don't use EI dosing, but there are several plant people on this forum that do, and could advise you further from their experience if you are interested in going that route. I use more of a PPS-pro system where you balance the nutrients added to what the plants take up.

Chris Noto
01-17-2010, 12:51 PM
There's a good summary of the Estimative Index method here (http://www.aquaticplantcentral.com/forumapc/fertilizing/15225-estimative-index-dosing-guide.html), on the Aquatic Plant Central forum.