so i made a post not so long ago...plants havent been doing so good...i have a current usa t5 ho 54x2...eco complete as substrate...been running for around 2 weeks...plants were doing ok first week but now its been down the drain...im going to add some fert even though they told me with eco complete it wasnt nec...what i need is a recomendation on a good co2 kit for a 55gal...something nice but not too pricey...trying to pick it up today before the lfs closes at 8...apreciate the help guys...im pretty sure thats why my plants arent doing to hot...pics coming up in 2 min