Seeking Advice for 3 Gallon Lights - The Planted Tank Forum
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post #1 of 6 (permalink) Old 11-27-2017, 06:17 PM Thread Starter
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Seeking Advice for 3 Gallon Lights


I'm jumping into the planted tank world. I went and bought a 21 gallon UNS tank and got a 3 gallon tank thrown in for free! Since the 21 gallon will be the "main" tank, I am going to likely put my resources into the 21 - already bought a eheim 2217, amazonia soil, thinking about CO2, etc.

As for the 3 gallon, my wife wants to design it and she wants a simple carpet with a couple of dragon stone pieces. Good to get her into this hobby with me since it's fun The tank is 12 x 7 x 7, and I won't be purchasing any CO2 since I'd rather invest in a CO2 system for the 21 for now. Is it possible to grow monte carlo in the 3 gallon with just a 12 inch Finnex Stingray or is the light too strong (since the tank is only 7 inches tall)? Or, is the light actually too weak? Any lighting suggestions would be helpful.

I'm looking for answers from multiple sources just so I can do a thorough research and thought this would be a great forum for some answers.
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post #2 of 6 (permalink) Old 11-27-2017, 07:10 PM
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Getting a thick "mat" style carpet is more dependent on CO2 rather than light. I had glosso that was not carpeting very well under the lower end of high light. As soon as I started injecting CO2 it immediately starting "carpeting". Same thing with my HC, I had it under extremely high light, with no co2 and it would not carpet. The finnex light you mentioned is not the limiting factor of growing a carpet in your 3 gallon.

Flame moss (or any moss really) would look nice if you could adjust it into a mat and create a carpet effect.

Good luck.
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post #3 of 6 (permalink) Old 11-28-2017, 04:26 AM
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Yes, its possible to carpet monte carlo without co2. I did it in a 2.5 gallon with the stingray clip on led.
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post #4 of 6 (permalink) Old 11-29-2017, 06:24 PM
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5g low tech
No co2
No ferts except some micro to keep the altharnanthera reddish
The Monte Carlo is pretty thick
<a href=""><img src="" alt="29_E45550_ADF1_4661_AE45_9888109_A748_C" border="0"></a> <a href=""><img src="" alt="22771_CDB_DBE2_43_A1_B61_D_487_E89_E7_C1_FF" border="0"></a>
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post #5 of 6 (permalink) Old 11-29-2017, 06:30 PM
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Many choose Monte Carlo over HC since it's not as co2 dependent.
Quagulator and Quagulator like this.
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post #6 of 6 (permalink) Old 11-29-2017, 09:41 PM Thread Starter
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Cool. Order some MC, the 12 inch stingray (not clip on)....I'm considering a CO2 system for my bigger tank so there is an option to inject CO2 here as well.
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