Originally Posted by sleepswithdafishez
So it's the P which reacts with micros ,and that's the reason why they are dosed in separate days.Now I get it ,thanx.Ferropol doesn't contain any nitrates or phosphates ,according to the label.
Just performed a PO4 test ,it came out lower than 0.2 ppm.
Checked my water supply chart - P is lower than 0.1 in my tapwater.
Most ferts ,like my Ferropol ,and the majority of fish foods nowadays ,are said not to contain any phosphates or nitrates - I think I'm on to something here.
P may be the limiter in my tank ,when I had my light really close to the surface - algae bloom.
Maybe I should start dosing K2PO4 ,instead of Ferropol ,and dose the micros in a different day ,some Fe+traces ,with no added K.What do you guys think?
Can we buy K2PO4 in pharmacies ,or only in aqua-shops?
To quote myself ,I just read that we can only measure the amount of in-organic phosphates with the test kits ,thus only the level of phosphates which were broken down from the initial organic state - and made available for the plants.
So ,in the end ,maybe I have a decent phosphate level after all ?
I have 3 Peacock gudgeons ,3 amanos ,30-something Red Cherry ,one Oto ,and one Giant African shrimp ,in my 10 g.
I feed once or twice a day max(the fish) ,and leaving the crumbles which fall on the bottom - to shrimp.I throw some JBL shrimp balls every once in a while.
I may might as well have plenty of organic phosphates which are decomposed ,yet immediately consumed afterwards ,so nothing left to measure.
The more I read ,the more I enjoy this hobby!