- 2 fantail goldfish - PLA - Mini oxidator: oxygen for aquarium (15 euro's) - Aquarium Airpump: I bought the TetraTec APS 400 with a high capacity. It is quit and powerfull enough to lift the water from the fish to the plant.. Price: 45 euro's at Intratuin.nl. - hydro culture plant. I bought the plant for 16 euro including VAT at 123kamerplanten.com. - Tetra GoldFish holiday. Vacation feeder for goldfish during holiday - The natural feeding behavior of fantail goldfish is to scavenge for food all day and eat whatever he comes across.