i have a 50 gallon tank with 186 wpg, the first week i put the plants i had in the previous tank. They weren't really in good shape so that's why i wanted to move them here. The first 2 days, the plants were producing oxygen, then suddenly they stopped, i put in 3 SAE and 6 otos in to eat algae but the plants still are not bubbling oxygen. I have 2 Hagen Units and i'm trying to make a DIY CO2 but doesn't look too good. I add about 3 ML of tropica master growth in the a day now but still nothing happens. ALso i put in some Excel to boost CO2. But still the plants doesn't look like they are bubbling oxygen. The star grass looks pretty good, but the ruffle amazon sword has new leafs that have red veins and look transparent. I don't know what to do in order to make them grow... i'm confused, i don't have any fish buddies around me also, please help