HenryC Posted September 30, 2020 Share Posted September 30, 2020 (edited) Hi guys, Every tank I have is near algae free, but my 40gal breeder has developed black beard and green spot algae (I think? can you identify them). Admittedly, the tank is a bit (or a lot) overstocked at the moment, the stocking is: 6 Neon tetras 6 Glowlight tetras 8 Albino Cories 2 very young, small electric blue acaras (will be moving those when they grow a bit) 5 otocinclus (bought them to help with algae, will give to a buddy when done) 4 black neons 5 serpaes 5 glass bloodfins 1 Paradisefish 1 Gold Gourami I've been algae free for over a year (mostly) in this tank, even when overstocked, but for some reason I've started to develop this algae. I've also been doing a 10 hour photoperiod, which has been very fine, yet something has triggered algae growth recently. I'm not sure what has happened but the only big change I've done is to change my fluval 406 canister with a spraybar to a ziss bubble filter and a 20g sponge. Could it be that I don't have enough flow anymore? The spray bar did amazing at circulating the water. Is it just the overstocking? I've been fine until a month back or so, when this algae started appearing. Matter of fact my stocking has decreased, before I even had 4 juvenile angels that I rehomed. Should I increase flow, decrease light, increase nutrients? (I dose easy green once per week). Perhaps easy carbon? How about planting more heavily maybe? I currently hava a good amount of hygrophila corymbosa, a big anubias plant, a banana plant, aquarium dwarf lily and a few vallisneria. Pics so you can see the planting. I also do 50% water change each week, nitrates reach about 40ppm when I do it. Thanks guys, Edited September 30, 2020 by HenryC Link to comment Share on other sites More sharing options...
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