Which seachem is " better "?

[Star-flog]

Hi,
If I have to buy only one Seachem bottle, which one should buy?

1) Flourish (S$9.5) OR
2) Flourish Potassium

I've got 3 tanks and the main plants are Riccia, Taiwan Moss, Xmas Moss and Java Fern. One (3ft) with CO2 and other two (1ft & 15") are low-tech tanks.

Too many bottles of seachem fertilisation supplement can sometime create confusion.

[|squee|]

Flourish. It's the comprehensive fertiliser, meant to be supplemented with Flourish Potassium, Iron, Nitrogen, Phosphorous, and Trace.

[Star-flog]

Flourish. It's the comprehensive fertiliser, meant to be supplemented with Flourish Potassium, Iron, Nitrogen, Phosphorous, and Trace.

Flourish will be the best all around. But, isn't it true also that 'rootless' plants such as mosses, riccia etc actually need more Potassium than other parameters?

[PeterGwee]

Flourish will be the best all around. But, isn't it true also that 'rootless' plants such as mosses, riccia etc actually need more Potassium than other parameters?

No, its the energy input namely light and CO2 and determines growth which in turn dictates uptake rate of nutrients. "Rootless" plants however can only "grab" their food aka nutrients from the water column whereas rooted plants can get theirs from the substrate if the water column is lean in nutrients. Do note that moss does not have the ability to use bicarbonate as a source of carbon and they only use CO2. (Quote from Tom Barr... ) So, to grow it well, give it loads of CO2 (Stable 30ppm or excess during the photoperiod) and non-limiting nutrients.

Use flourish for trace elements and get KNO3, KH2PO4 for macros. You can consider Seachem Equilibrium as well if you feel the need to beef up the GH.

Regards
Peter Gwee

[Star-flog]

I see and learnt something today. The decision will be - to buy a bottle of Flourish tomorrow. Thanks a lot!