Co2, Ferts Really Necessary?

[t4ppo]

Right, After 12 months of closing my tropical tank and joining the marine side i am now back Opening another tropical tank again!
Its a 5x2x2 sumped, I have all my Filtration set up, And it is Pretty Much cycled now, my last tropical tank was heavo;y Planted but.. i never used ferts or Co2 And the plants grew like weeds! Now this time round I want another heavily planted tank,i have more intense lighting and with it being sumped i am sure that there is going to be a lot of co2 lost though the pipework etc etc, So what would be my bets option for a co2 diy? The fire Extinguisher option? The pop bottle.. Or Buying a unit, Bearing in mind the tank is 500L roughly,
Or.. Could i get away without c02 at all?

Thanks In advance Jamie

 

[mike455555]

depends on your lights if you need it and go pressurized if you do... or your going to need like 10-20 bottles of yeast. and will cost a bomb in sugar

 

[t4ppo]

Hi thanks for the reply, I am going to be using an at arcadia unit with 4 54watt t5's

 

[mike455555]

id say you'd need co2 and fire ex would be the best way =]

 

[t4ppo]

Ok cool. How long roughly would a full extinguisher last?

 

[t4ppo]

The 2 kg one in say a quite heavily planted tank

 

[mike455555]

to be honest i haven't a clue iv never used one. im on yeast as you'v got a sump some of the gas would defuse out of there as well ( i think) so it might not last long at all about 6 months? maybe more i haven't a clue

 

[t4ppo]

Lol ok thanks for your help,