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Hi All,

Am having an algae issue. green fine spots all over the glass which are permanent or very hard to remove. Only goes by use of scotch brite, but thats putting scratches the glass as well. Please advice

Tank Specs:
4'(l)*15"(w)*20"(h)
5*28W of light for 8 hours
Pressure injected CO2 3 bubbles er second
ISTA MACRO 10ml twice a week
ISTA MICRO 20ml thrice a week
Substrate is Contra soil

Have attached the pic of the spots.

Don't use scotch brite to remove the algae from glass. Use a old debit/credit card or SIM card cover or new blade to remove green spot algae to instant remove.

Add phosphate and increase CO2 to prevent this algae. Change water frequently.

If I increase the co2 the fishes start dying. I change 50% water in a week or 2. Which form of Po4 do i add?

SCORPIO wrote:Don't use scotch brite to remove the algae from glass. Use a old debit/credit card or SIM card cover or new blade to remove green spot algae to instant remove.

Add phosphate and increase CO2 to prevent this algae. Change water frequently.

, excess light can also be one of the reason. can we have some information about your light system, also let us know if the tank gets direct sunlight??

HI Sushant,

I also thought the same and as i mentioned in the above post I was using T5 28 W*5 but now i have reduced it to T5 28W*4

Don't panic. This is perfectly natural. May look a bit dirty, but its presence means that your water carries enough nutrients. You havent indicated where you are located.

Here is one suggestion. If you have a car accessories dealer near where you stay, go and visit this dealer. Ask him for white cleaning cloth which is used to apply wax or wax polish. These are mildly abrasive and come in a bunch of 10s. You can use one cloth for 3-4 cleanings. Use these to clean the inside of the glass, the algae will go away.

HI,

I am based out of Lucknow.

HI,

Might you have kept your tank in such a way where sun light may be directly reaching in to the tank this also may be one of the

reason for this algae but if you want to get rid water change is the best solution.

Regards

Well its not getting direct sunlight. However used the credit card solution and used it to good effect.

Then its ok since it happen to my tank also i thought it colud be one reason .