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Discussion Starter · #1 ·
What to do? My slow growing plants seem to accumulate green spot algae on the leaves. My fast growing plants seem immune, but its ruining some of plants what do i do? Pressurized CO2, dose NPK SO4 and micros. T5HO 55x3 on a 55G
 

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If it's GSA, try some otto's or amano/rcs (given, you have fish that won't eat the shrimp).
 

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What to do? My slow growing plants seem to accumulate green spot algae on the leaves. My fast growing plants seem immune, but its ruining some of plants what do i do? Pressurized CO2, dose NPK SO4 and micros. T5HO 55x3 on a 55G
Try 3ppm or so of PO4, good CO2, and what you where doing otherwise.
Should take care of the GSA. I add about 3-4ppm 2-3x a week of PO4 and have no issues with GSA.

Regards,
Tom Barr
 

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Discussion Starter · #5 ·
I dose 1/8tsp of PO4 3 times a week, 1/2tsp NO3 and 1/8 TSP KH2SO4. I use fluorite as my substrate. For my 55G, to obtain 3-4ppm of PO4, how much should i dose?
 

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Seems about right 0.29 grams will add 1ppm to the tank.
Teaspoon weight= 4.8 grams or so

4.8/8 = .6 grams

So 2ppm per dose.

So if you still have GSA, you can rule out PO4 for the issue it would seem.
Next, focus on less light/more/better/stable CO2.

GSA is 2 possible issues, not PO4 alone.
PO4 is the easy one to rule out and adjust, CO2 is harder, but easier with less light.

Regards,
Tom Barr
 
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