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Green and Brown Spot on the glass

449 Views 2 Replies 2 Participants Last post by  milindsaraswala
I have 18 gallon fresh water tank (i.e. L = 22inch, D = 10.5inch, H = 18inch) with FloraMax substrate and filter capacity is 800 l/h . My tank is establish from last 5 months.

My stocking is
  1. 3 Gosht Shrimp
  2. 2 Amano Shrimp
  3. 6 Cardinal Tetra
  4. 5 Guppies
  5. 1 Blue Dwarf Gourami

I have some plants are
  1. hair grass
  2. Java moss on dog wood
  3. Anubias nana
  4. Cabomba Caroliniana

I am dosing daily seachem liquid fertilizer as per Seachem Dosing Chart. Due to seachem fert my anubias nana florish with new leaf and hair grass is doing well. I am keeping my lights on for 8 hr a day

I change water every week 40-50%. Today I did 80% water change to clean tank by scrubbing glass with cotton cloth and now it is clean.

My lights are LED light on the hood of the tank. I don't know what is watt per gallon as it is not written on it.

Last week on the bottom of the tank glass is start covering with brown and very small spot of green. I feel issue is over feeding. So from today I will feed every next day. Other thing I feel is light is not good, So I like somebody here suggest which light is good which I can put on my hood.

Please also suggest me please more what can i do it will not occur again
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In my experience, Green Spot Algae is caused by insufficient phosphates.

Also, more lighting may mean you will need to run CO2. If the plants are growing well right now and you're happy with their progress, I wouldn't change it.

Watts per Gallon is an old method of measuring light output. It only applies to incandescent lamps.
As I told, I change 80% of water and clean the algae. So it is looking clean. This week I will feed fish every next day and don't change any thing.

I will keep updating you guys.
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