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Hi
My tank size 36x18x12 (LxHxW). I'm using light 2xt5 (14)+1xcfl (20w) . No co2. 25% water change every 3 days. Is it ok? Please guide me on lighting requirements.

Light is not enough to grow plants.

Use atleast 3 X 3 foot T5. Each tube is 21 watt.

Thank you for advice. Can I put one pll of 28w along with 2xt5 (14w) . That would be 28w pll + 28w t5 as t5 is already installed. I will remove 20w cfl.

What plants you have?
Also you need to increase lighting balancing on CO2 only otherwise algae may come.

I will not suggest increasing lighting without co2 at the least.

Ram wrote:Thank you for advice. Can I put one pll of 28w along with 2xt5 (14w) . That would be 28w pll + 28w t5 as t5 is already installed. I will remove 20w cfl.

First of all list your plants, so that we can help you in deciding about lighting as Partha suggested.

High light without co2 and ferts will result in algae issues.

Sir,
I planted dwarf grass, Echinodorus Muricatus Green - One Bunch(3 Plants), Vallisneria nana – One Bunch(3 Plants), Hemianthus callitrichoides - One Bunch(20 Plants), Bacopa Caroliniana - One Bunch(5 Plants), Potamogeton gayi – One Bunch(3 Plants), Ludwigia Repens - One Bunch,
Java moss.
My moss turned light yellowish brown. Used DIY substrate(cocopeat, soilrite garden soil and golden sand). Substrate height 3 inch

Some of those plants require heavy light. And growing HC without co2 would be quite a challenge.

I'm planning to set up diy CO2 for my tank but unsure of correct dosing. also shall I put PLL of 28w along with 2xts (14 w). would it create any imbalance and algae with my set up. im already facing brown algae, but I suppose it is a new tank syndrome. please advice me about my lighting as I have already spent close to 2000/- on plants and some of them died and others like HC are growing very slow.

This may help you about diy co2
http://www.kolkata-aquarium.com/viewtopic.php?t=548

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