[myraymond]

I am wondering how many bulbs I should use for my 90G planted tank with pressurized CO2. right now I am using 4 bulbs of T5HO (4 x 54w). the plants grow fine but the red plants are not red enough and few oxygen bubbles happen. should I add two more T5HO so that 6x 54w=324 w light? Pls advise. thx.

 

[jjp2]

4 x 54 should be more than enough light.


Is you CO2 high enough?
What is your fert plan?
what types of plants?

 

[hbosman]

What are you using for ferts?

 

[myraymond]

I add fert once a day and CO2 is around 3 bbs.

 

[hbosman]

KNO3, FE, phosphate, potassium?

 

[myraymond]

mainly FE.

 

[pandapr]

You should check up about Estimate Index (EI)

 

[Darkblade48]

Do you have a drop checker? Also, how are you diffusing your CO2?

3 bps seems on the low side for a high light 90g tank.