View Full Version : EVO 13.5 Startup Questions and Observations

09/22/2017, 06:17 PM
Hi all. I have a brand-new EVO 13.5 in my home that I am about to bring to life. I have made some observations, and that leads me to some questions that I hope you can help answer.

First, I have purchased a heater to fit in the chamber with the return pump. But it appears to me that the pump that shipped with my tank is physically larger than the one that is shown in the included quick start-up guide. My pump must sit sideways, leaving very little room for a heater. I have a Fluval M50 heater, and even though it would be described as thin, it is still a very tight squeeze to fit in with the pump. Has anyone else run into this, and should I be concerned that the heater is right against the pump?

My next question is how much live sand is needed in this tank?

Finally, how much live rock, and assuming sand & rock take up a percentage of the total tank volume, how many gallons of salt water ultimately occupies the tank/filter area? I am trying to decide how many 5-gallon (empty) jugs to purchase in order to get things going. For now, I plan to purchase RODI & salt water from my LFS, and wonder how many bottles to bring for the initial purchasing. I know there are lots of variables and preferences. I am just trying to get a ballpark idea.

Thanks all. Iíll probably have many more questions as things move forward. Thanks in advance for your replies and advice.


10/20/2017, 01:26 PM
I just recently set my fluval evo 13.5 up and I'm having the same issue. It isn't suppose to be submerged all the way but the top part is way to tall to allow for that and it won't go all the way down to the bottom due to the pump. All the images show the pump being down further but that would put it past the submerge line. It is the exact heater that they recommend. Very confused as to what I should do. I have a small heater but I can't control its temp so that concerns me too.