Re: Vito's first planted tank - Juwel Rio 125 (Finally!!!)
Vito,
It depends on when your timer comes on. There is not an inherent risk of BBA just because the tank is on a timer versus 24/7. Generally, the CO2 should come on an hour or two before the lights come on. The idea is to saturate the water column enough so that at lights on the plants can immediately begin to feed and it is at this time when they are most vulnerable to carbon starvation. if your injection rate is poor then it may take longer to reach the proper saturation levels and the plants may still suffer, especially if the lighting is high, so it's a combination of injection rate and timing. If you had BBA to begin with adding CO2 does not mean that the BBA will disappear overnight because BBA loves CO2 just like any plant, so they will respond as well. You have to physically remove the BBA as well as physically remove all infected leaves. You need to also do more water changes to remove BBA spores from the water column. You can dose 2X or 3X the stated amounts of the Easycarbo bottle as long as you don't have susceptible plants like Riccia which respond poorly to the liquid carbon products.
Cheers,