Hello all.Im looking for opinions on should I use Co2, in my planted aquarium. I've a 55 gallon aquarium,inhert sand substrate with two very large pieces of drift wood with, Anubias (various), African water fern, Java ferns attached to them both. In the sand in multiple places, I've cryptocoryne balansae planted,which I use root tabs to feed them. I use a liquid fert, liquid potassium, liquid iron for all the plants named above. I know they're all slow growers, the tank is moderately to heavily planted.The livestock is 20 tiger barbs,20 cardinal tetras,1 siamese algae eater, 2 clown plecos, 1 albino bristlenose pleco, 2 corydoras catfish. I understand the plants are all slow growing an that currently everything is thriving. Question is would I gain any benefit from installing a pressurized Co2 system. Any opinions welcome.