Tropical Fish Keeping - Aquarium fish care and resources

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milindsaraswala 03-19-2010 07:08 PM

Plant New Leaf are coming brown
I have 8 gallon tank with only 1 plant and it is doing well now in just 1 week. I am putting lights for 8 - 10 hours a day daily. I can see some small amount of growth in my plants .

My lights it is 22 watts and 6700K. And as I told my plants are doing good . But from last two days what I am watching is my new leafs are comming brown rather than green what can be the problem. and how can i solve it.

Please I will very appreciate you people advice me what to do !!

Oldfishlady 03-19-2010 07:52 PM

What kind of plant? what kind of substrate? any ferts used? got any pics?

milindsaraswala 03-19-2010 08:11 PM

I am putting some image so you can know what is the plant. Substrate is simple small stone as you can see in picture. No ferts No CO2

redchigh 03-19-2010 09:46 PM

looks like cabamba... maybe purple cabomba would explain the brown-ness.

can you decrease the light? 22W for an 8gal sounds like a LOT but I'm not sure if thats actually your problem or not... maybe brown algae is just growing on the part of the plant closest to the light?

Byron 03-20-2010 01:32 PM

This same question was asked in your other thread, so I'm copying my earlier response from there, with revisions below it:

Does the "brown" wipe off the leaf with your finger? If yes, it is brown algae, more correctly known as diatoms. But if it is the actual leaf that is brown, there is an imbalance between light and nutrients.

22w of 6700K light over an 8g is a fair bit of light; how long is the light on each day (it should be close to the same duration every day)? And are you using any liquid fertilizer yet (you don't mention any)?


Now that I've seen the photos, you can forget the algae issue, it is the light/nutrients issue. And you said no ferts. So, I would suggest using a comprehensive liquid fertilizer to provide the nutrients the plant needs. If that works, fine; if not, the light will have to be reduced. Good ferts are Seachem's Flourish Comprehensive Supplement for the Planted Aquarium and Kent's Freshwater Plant. These each make several products, ensure it is the exact one. If you can't get these and want other suggestions, let us know. Byron.

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