seachem for green spot algae

**kentoh** · 26th Jun 2010, 10:02

Hi.. anyone has any experience of trying seachem phosphorous against green spot algae?

**vinz** · 26th Jun 2010, 13:15

How do you propose to use it?

**kentoh** · 26th Jun 2010, 16:59

As I read somewhere that gsa is due to low phosphate level so I am wondering if I'm able to use seachem phosphorous for it?

**vinz** · 27th Jun 2010, 01:22

Yes you can.

**barmby** · 29th Jun 2010, 03:28

kentoh, let us know the outcome after 2 weeks. The result should show.

**Plantbrain** · 30th Jun 2010, 04:38

KH2PO4 is a lot cheaper. SeaChem PO4 is mostly water, with a tiny bit of KH2PO4 in it.

2-4ppm, I add about 4-5ppm 2-3x a week myself.
I have no GSA.

The other issue might be CO2 is slightly off, under dosed.
Make sure you have good current and O2 before adjusting CO2 and do so slow and carefully and watch.

Regards,
Tom Barr

**kentoh** · 6th Jul 2010, 19:52

Been started using phosphorous seachem but results still ain't there. The green spot algae still keeps coming back. May be due to my lack of co2 but I'm already dosing 2.5 ml of seachem excel (daily) and 1.5ml of seachem phosphorous (weekly). Wonder if I'm overdosing as I do not have a test kit for my 40cm low tech tank. Anyone has got any idea? Thanks. Or should I be dosing the phosphorous more often?

**barmby** · 7th Jul 2010, 11:51

Seachem Excel no count as CO2

They are just supplement to me.

You need the real CO2 injection

**kentoh** · 7th Jul 2010, 19:36

But are they enough for a low tech tank? I see my mosses growing well though. Was wondering if hairgrass can be suitable for my low tech tank with only seachem. Any idea?