![Amazon.com: Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201,Black : Everything Else Amazon.com: Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201,Black : Everything Else](https://m.media-amazon.com/images/I/71qFSDJ4NOL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201,Black : Everything Else
![Ista inline > hydor inline. The night viewable temps if nothing else. Also it holds temp better and clicks 1/2 as loud. : r/PlantedTank Ista inline > hydor inline. The night viewable temps if nothing else. Also it holds temp better and clicks 1/2 as loud. : r/PlantedTank](https://external-preview.redd.it/9F1hUQhFf_bw_9JVZkMYpkJ1mZ8jy2sc0ImhBvenvcE.jpg?auto=webp&s=100bf46855352ee4f0da6d2ebedb225918198fde)
Ista inline > hydor inline. The night viewable temps if nothing else. Also it holds temp better and clicks 1/2 as loud. : r/PlantedTank
![Amazon.com: Hydor ETH 300 In-Line External Aquarium Heater, 300w, 5/8" hose, Black : Everything Else Amazon.com: Hydor ETH 300 In-Line External Aquarium Heater, 300w, 5/8" hose, Black : Everything Else](https://m.media-amazon.com/images/I/41e3wVvtm1L._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOUR%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA788%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: Hydor ETH 300 In-Line External Aquarium Heater, 300w, 5/8" hose, Black : Everything Else
![PetSolutions: Hydor ETH External Thermal Heater Inline Heater for Canister Filters and Return Pumps - YouTube PetSolutions: Hydor ETH External Thermal Heater Inline Heater for Canister Filters and Return Pumps - YouTube](https://i.ytimg.com/vi/OOqIiS5Ny4c/mqdefault.jpg)
PetSolutions: Hydor ETH External Thermal Heater Inline Heater for Canister Filters and Return Pumps - YouTube
![Amazon.com: Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201,Black : Everything Else Amazon.com: Hydor ETH 200 In-Line External Aquarium Heater, 200w, 5/8" hose - Original ETH 201,Black : Everything Else](https://m.media-amazon.com/images/I/31KUwrJTubL.jpg)