For past several months my plants have not been doing well. I upgraded to a 90 gal. and for the first few months the plants were doing amazing. Now algae quickly covers plants and their growth is weak and stunted. I have IceCap Ballasts and am running 5 T-5s (3 10K and 2 6.7K) for at least 8 hrs/day as well as CO2 (although I run out of it quickly and sometimes it takes me a few days to get more). I do water changes about every 2 weeks and change anywhere from 20 to 50 gallons. Filter is an Eheim. I am in a hard water area and am using tap water. Thinking of going to RO/RI water, but I have read in some media that hard water should not impact plants that much, if at all. When I had a 45 gallon plants were growing like crazy. Hopefully pictures of tank and sick plant example are attached. Thanks for any ideas you can provide.
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