If you're intending to keep shrimps, I wouldn't suggest Seachem's Flourish Excel as there have been many cases where people claim it kills the shrimp. In my case, when I used excel my shrimps showed some signs of lethargy. Other Seachem fertilizers were
ok for my shrimps like Potassium, Trace Elements and Flourish(there's copper but way too little to harm shrimps). They go for around 8 SGD per bottle and pretty much available at most LFS.
I prefer using ADA fertilizers, Brighty K and Green Brighty Special LIGHTS work well together on plants like HC, they go for about 25 SGD per 250ml bottle. Another alternative that I've tried and was rather satisfied with was the Ferka range of fertilizers,
not too sure of the price but it's a bit lower than ADA, somewhere around 18 SGD per bottle.
I work around the west/north side so for me, C328, Y618 and recently Bukit Batok Block 283 have been selling these fertilizers, where you find ADA, you'll probably find Ferka, same distributor I believe.
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