I've got a year-old 75 gallon tank. Started out trying the Walstad low-tech method but had no luck. Added HO T5 ligthing (2 54 watt 6700's) and CO2 system from Orlando with in-line diffuser. Starting to have severe algae issue. Replaced Sword plant but new plant disintegrating in same fashion. Fertilize daily using the PPS-Pro system. Eheim canister filter. One power head for additional circulation. Lights on three hours in the morning, two hour siesta then six hours at night. Clearly I am missing something here as I can only keep large leafed plants alive and have no luck with ground cover. Any help would be greatly appreciated!
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