Tetra Vacation Tropical Slow Release Feeder 1.06 ozFeeds Up To 14 DaysProduct Description:Existing plaster blocks are “old school” technology that can wreak havoc on your water quality! Tetra’s innovative new gel feeder blocks contain no plaster and feed up to fourteen days with the Tetra Vacation Tropical Slow Release Feeder. Tetra’s feeders provide real nutrition to fish when they need it. Allows fish to eat when hungry vs. plaster feeders that dissolve Packed with Tetra’s patented, health enhancing ProCare ingredients Will not pollute water or negatively effect water quality Gel blocks may be left in the aquarium when regular feeding is resumedPowered by eCRATER . List your items fast and easy and manage your active items.