Hi folks,
I only use fine gravel for my 2 ft tank. It's about 9 mth old by now. I've used those fertilizer sticks before but it melted and created a mess whenever I uprooted my plants. And it even contributed to BBA growing on the gravel.
Any slow release fertilizer to recommend, the est. cost and where to get it ? I've heard of the 7-ball (???) type but not sure what it is.
Thks for your advice.
Cheers,
Peter
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