bcbishop Posted March 15, 2015 Report Share Posted March 15, 2015 Can anyone tell me what this is and what i need to do to get rid of it?Its like a black algae growing on my plants.I do ei dosing with weekly 25% water changes. I have a Marineland Double bright that runs 10.5 hours.Thanks Quote Link to comment Share on other sites More sharing options...
Shambhalove_ Posted March 16, 2015 Report Share Posted March 16, 2015 I do ei dosing with weekly 25% water changes. EI is based on doing 50% w/c, otherwise the fert levels will constantly be rising. Not saying thats the problem but something to think about... What are those plants? Are you sure they are aquatic? Quote Link to comment Share on other sites More sharing options...
jvision Posted March 16, 2015 Report Share Posted March 16, 2015 It looks like brush algae. How old are your bulbs - if nothting's changed and it just showed up, old bulbs is typically the cause. Like Shambhalove_ said, EI is based on using a 50% weekly WC to reset the tank. If you don't like using buckets, get a garden hose or python-type system. The only other thing I'd recommend, if everything else fails, is increase your CO2 a bit. Quote Link to comment Share on other sites More sharing options...
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