Hey Tang man,
GP's and Reef-roids are not even similar in composition.
To start, GP's is made primarily from processed fishmeal. Reef-roids doesn't have any fish product in it.
Reef-roids is an unprocessed product. We use only whole ingredients in Reef-roids so that your water quality will not change. While providing an extremely palatable and nutritious supplement for your corals.
And if you want to be adventurous. Try putting 3 tablespoons of Reef-roids in your tank. It'll just end up in your skimmer with no algae outbreaks. Then try putting 3 tablespoons of GP's in your tank. =)
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