Thought I Knew What I Was Doing
I've had my 75g tank up and running for about 4 years as a low-tech, mildly planted Tanganyika cichlid tank. Sold off all the livestock, did some maintenance and started restocking within 24 hours. 5 weeks later and i'm starting to grow brown algae?!?
75g display tank with foam & concrete 3d background
Current Satellite Freshwater + LED lighting, 1:00 PM - 9:30 PM, tank doesn't get much direct lighting otherwise
20g sump running 3 sheets of porret foam for filtration and a continuous drip system changing out about 5 gallons a day.
pool filter sand, field stone & driftwood, crypt & java ferns for years with no problems
I'd add DIY CO2 and Seacham Fourish now and again to fill out the plants quicker if the fish beat them up.
8 penguin tetras, 5 Apistos, 9 Panda Corys, 2 juvi bristlenose - added 5 weeks ago
large Amazon sword, large tiger val & java moss on the drift wood, 5 Gudgeons, 4 kuhli loaches - added 1 week ago
My buddy gave me a CO2 tank and regulator, so I set it up in my sump at 5-6 bubbles per minute starting a Noon (hour before lights) and go off at 9:00 as the lights start to fade out. 5ml of Flourish 3 times a week. My old DIY CO2 use to run full time and dosing slightly more just to replenish the plants then I'd pull it off.
So the right side of my tank is getting some brown algae growt on the rock faces & background face. The left side of the tank isn't getting the same algae bloom, but there's more leaf cover with the java fern on the drift wood. My return is on the right side of the tank, but I don't think that has much to do with it. All the LED's are functioning on my light, so I'm a bit lost on the algae growth on one side.
75g that has rolled through various incarnations over the years...