Well if you do change your mind....Here's something you can review:

DIY CO2 Made Easy

Oh really?

Good for you.


To me there seems to be a low tech sweet spot which is very easy to obtain. To correct a "problem" IMHO, you should also keep the solution low tech also like reducing feedings and light for instance.

(of course if you feed lightly and keep the lights low to start with you don't get those "problems" anyway )


But once you start "adding things" then other things have to be changed as well. And you wind up with a high tech setup requiring lotsa maintenance. The tank may be awesome but to me it still can be awesome with a whole lot less work, equipment, and expense. Well plants do cost but you get the idea as you already have it working.

and still just my .02

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fw leiden since 1979, fo salt since 1979, mixed reef 55g 2002-2009. Strong emphasis on the tank taking care of itself. Balanced with plant life, no water changes, tap water, no filters in FW. Only dosing calcium, alk, mag in marine reef tanks. http://www.aquariumforum.com/f15/my-...ods-26410.html
recent tanks (till 2009) 7 years- 10g FW leiden 7 yrs, 55g mixed reef 7, 2 yrs, 20g FW leiden, 10 g fw leiden , 29g mixed reef, current tank 55g leiden

Well i was told that i got high lighting , 2 x 24w t5 bulbs for 100 litre tank,which is why a lot of people said i would need to add CO2 .

The tank was given to me for free , but light unit didnt work , so i spent about £100 on a new light unit and bulbs .

There was another light unit for this tank,which takes 2 x 15w t8 bulbs , price was nearly the same,couple £ cheaper .

Maybe i should have bought the one which takes 2 x 15w t8 bulbs , but its done now,there is no way i can afford to buy another light unit,so will have to stick with the one i already got.

No, your light is just fine. You're right on the edge of the medium light range. Do you know if the bulbs are standard T5s or are they HO or VHO?

I dont really know,on the box all it says is "T5 24W Ultra High Output"

That would most likely be very high output then.

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http://bountifulbettas.blogspot.com/

"Come to the dark side....we have cookies...and filters/heaters/and water changes!"

Who makes the light fixture? Sounds like a T5HO setup to me, but knowing the brand and/or model number will help to be able to look it up. If it is a T5HO setup, you are well in the high lighting range.

Nontheless, it doesn't mean that CO2 is required. I don't think that is true with any setup. You may need it to help you fight some issues that could occur, but if you aren't experiencing any of them, no worry. I ran a pretty high rated light over my 75gal for 5-6 months before putting CO2 on it and did just fine, but only kept the light on for a fairly short period (6hrs).