overheating

I ordered stuff to set up a whole heating and cooling system for my fluval evo 13.5g, which had exactly 10g of water in it. It includes: •Bulk Reef Supply 100W Titanium Heater Element •Tunze aquawind eco chic cooling fan •Ink Bird ITC-308 WiFi Dual Stage Temperature Controller •Tunze...

Hey. I made an embarrassing mistake. When I put in my new heater for my reef tank, I somehow forgot to put the temperature reading gauge in the tank to monitor the temp and base the heat off the gauge. Therefore my heater was constantly heating up and my tank ended up at 96°F… Thank god I was...

Good idea or Bad idea? The Problem: Without a chillers, most reefers can only heat > cool water, but NOT cool > warm water. My oberservation: Especially during the winter I chose to add the new salt water into my heater chamber during water changes. But, I realized after doing so many...