Is it too much ?

clear one 3 ft tank and bring the Mag II PL lighting up to the top tank
now got 4 36watt for the tank is it too mch tat mean is 144watt in total for a 3 x1.5x1.5 but wif fan on

Nope. Its actually quite alright. considering u have almost reach 3 watt per gallon. (3 x 1.5 x 1.5 = 51gal.)
Now it really boils down to what u are planning to keep in your tank.
A fan would be advisable to help keep the temperature down.
Cheers.

By taking in consideration of substrate, plants and other decor u have in the tank. The watt/gal will not be accurate. As ur tank is only 1.5ft tall, ur lighting is consider to be strong. Spot algae will like to pay a visit. Try to reduce the lighting period(6to8hrs) will help in reduce the chance of getting spot algae.

Happy planting

[elimmel]

with the increased lights, you to pay more attention to nutrients available for plant growth, especially co2.

I'm using two MII 4x36watts for my three ft too. No worries should be ok, just don't put your nanas if you have any directly under the light. CO2 important, fert regime too as you are approaching 3w per gal. Lighting period now about 8 hrs if not a lot of spot aglae forming the last time I had them on for 12hrs.

ok tks alot so can say is just nice for my tank

Originally Posted by Little_Fish

Nope. Its actually quite alright. considering u have almost reach 3 watt per gallon. (3 x 1.5 x 1.5 = 51gal.)
Now it really boils down to what u are planning to keep in your tank.
A fan would be advisable to help keep the temperature down.
Cheers.

actually i on my light is around 4-5 hrs a days tat all

Originally Posted by nkh

By taking in consideration of substrate, plants and other decor u have in the tank. The watt/gal will not be accurate. As ur tank is only 1.5ft tall, ur lighting is consider to be strong. Spot algae will like to pay a visit. Try to reduce the lighting period(6to8hrs) will help in reduce the chance of getting spot algae.

Happy planting

i'm using the naturfin C02 is it enough ???

Originally Posted by elimmel

with the increased lights, you to pay more attention to nutrients available for plant growth, especially co2.

i only on for few hrs like 4-5 hrs that all like tat should be alright rite
?

Originally Posted by KoiSG

I'm using two MII 4x36watts for my three ft too. No worries should be ok, just don't put your nanas if you have any directly under the light. CO2 important, fert regime too as you are approaching 3w per gal. Lighting period now about 8 hrs if not a lot of spot aglae forming the last time I had them on for 12hrs.

Using DIY co2 may not be enough. Not that it doesn't provide co2, but it cannot provide a STABLE source of CO2. If you can, do go for a pressurised cylinder. It will save alot of troubles (algae included, esp in your 3 wpg tank)

Anyway in most cases you can have 300w or more if you dare, it's all about having the right combination of nutrients and co2 (temp too I guess) to compliment the light.