GSA with 8-10 ppm of P

Re: GSA with 8-10 ppm of P

I'm in the same situation and I feel its a CO2 issue.

I was wondering if I do correct the CO2 level, will GSA automatically go away? or will I have to manually remove it like some other algae.

Thanks.

 

Re: GSA with 8-10 ppm of P

That’s a definite maybe...on the algae just going away.
I was certain that my CO2 was a rock solid 40ppm during the photoperiod, but I had to prune, scrape and depend on my ottos for compete eradication. It has never come back.

 

Re: GSA with 8-10 ppm of P

Okay something weird is going on in my tank.
Here is my scenerio:

Last week:
- Cleaned out filter (it was clogged) and replaced the filter floss in it.
- Added some Manzanita wood and river rocks into the tank

During the week:
- Dose EI as usual (never had problems for almost 4months, algae free)
- 1/2 tsp KNO3 + 1/4 tsp KH2PO4 every other days (45G tank)
- 10ml of TMG in between
- note: it may seem like I dose a lot, but I haven't had any problems since dosing at this amount. at 1/4 tsp KNO3 I sometime start seeing BGA, at 1/8 tsp KH2PO4 I start seeing GSA

6 days later:
- started noticing a lot of GSA on glass, on wood, and rocks
- since I didn't change my dosage method, I assume it could be a CO2 issue (I checked the tank, it was running low)
- I increased the bubble rate + added a solenoid (been running it 24/7 before)

A week later:
- all my shrimps are dead this morning
- fishes are doing okay, not gasping at the surface.


I haven't been using test kits nor do I have any at the moment for a while...so I do not know my water parameters, I will continue to do my weekly water change to reset everything, but does anyone have any clue as to why these things are occuring? have been really stable for 4months.

Thanks