The Planted Tank Forum - View Single Post - Unidentified Algae - Please Help!
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post #6 of (permalink) Old 12-28-2012, 01:03 AM
Planted Tank Enthusiast
Join Date: Jan 2008
Location: Cleveland, Ohio
Posts: 988
Originally Posted by DarkCobra View Post
This is staghorn. I know it well, notice my sig line.

Ranges from dark grey to almost white, but with a hint of green if you look close. Longer than BBA, fatter strands when mature, and with a characteristic branching reminiscent of a stag's antlers - thus the name.

Never saw it at all in many, many years until it was imported on a new plant. Since then, I've had many massive battles with it. Now it apparently lays dormant in all my tanks, as it will rapidly make a reappearance should conditions favor it.

It loves high light. Even if the light isn't quite bright enough to induce it alone, it may still appear if there's strong flow across leaves. So it typically appears near the top of the tank, in a strong current. It may also appear elsewhere if leaves are covered with other algae, or weakened for any reason; though it won't grow as fast.

It will grow in CO2 levels from 0 to 60ppm, regardless of stability (or lack thereof). Even in the concentrated output from a power diffuser, the CO2 is no impediment; it simply enjoys the flow. No other nutrient parameter has any significant effect. Only limiting light and flow, plus keeping plants in peak health, prevents it.
That is interesting. IME, staghorn appears when the tank has poor circulation and low co2. I think they are one of the easy algae to get of rid. Spot treat with excel and increase flow in the tank. BAMMM!!! They are gone.

But from your description above, it is totally opposite. You must have super staghorn or something different. Have you tried or have someone take a look of your staghorn under a microscope to see if it is the real McCoy?
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