Green algea questions

mes1234

mes1234

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Jan 25, 2010
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My 20gallon high planted tank has been going for about a month now. It has had plants in it for about 2 weeks. I have 50 watts of lighting, and a DIY co2 system. I have 6 cardinal tetras, and 4 ghost shrimp. I am just now starting to get some large string like green algea. Is my tank going to explode within a week with algea? If so, how can I control it.
 
How long are your lights on?? What spectrum??
 
Could you google hair algae and compare to see if that's what you're dealing with? I don't think your tank is going to explode with algae; especially in a weeks' time, but you should try to nip this at the bud during it's early stages. :) Good luck!
 
that's a ton of light for a 20g. I run 40w over my heavily planted 20, and can only run it for around 10 hours without algae problems. DIY co2 is also too irregular to add the stability I would want out of it... Id say either reduce the wattage and kill the co2 or reduce the time the lights are on to less than 11 hours.
 
mellow is spot on imo. often times several things contribute to algae. there's no one blanket cure although we can add or limit one thing or another to control it other times. light should be your first limiting factor then co2 following.

at any rate you'll want to know what algae you have... http://www.theplantedtank.co.uk/algae.htm
 
mellowvision said:
that's a ton of light for a 20g. I run 40w over my heavily planted 20, and can only run it for around 10 hours without algae problems. DIY co2 is also too irregular to add the stability I would want out of it... Id say either reduce the wattage and kill the co2 or reduce the time the lights are on to less than 11 hours.
Click to expand...

I semi agree on this.

1) Your lights ARE on too long. Make it to about 10 hours.
2) Irregular CO2 is better then no CO2. Keep the CO2.
 
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