Pimp my fluval flex 15 gallons

[Karen B.]

Greetings!

I just received my fluval flex 15 gallons. 
If you have one, I would like to hear if you’ve done any modifications or if you have ideas.

1- with what to fill the huge empty first compartment 

2- Is it ok if I added a sponge filter in the 3rd compartment? It’s mostly so I always have one ready if I need a cycled one.

3- If I want more lights, what do you think of the nicrew submersible led light?

Any toughts suggestions or comments are welcome! My population will be 15 chili rasbora, 6 clown killifish, 1 nérite snail and 1 orange dwarf mexicain crayfish (cpo)

Thank you!

[StephenP2003]

On 12/17/2020 at 4:48 AM, Karen B. said:

1- with what to fill the huge empty first compartment 

 

Look into "InTank" media baskets. They are not cheap, but I do like them a lot for my fluval spec. They make them for the flex as well.

On 12/17/2020 at 4:48 AM, Karen B. said:

2- Is it ok if I added a sponge filter in the 3rd compartment? It’s mostly so I always have one ready if I need a cycled one.

The compartment where the pump and heater go? I suppose some small amount of sponge material would be ok, but I worry about blocking water movement around the heater. 

On 12/17/2020 at 4:48 AM, Karen B. said:

3- If I want more lights, what do you think of the nicrew submersible led light?

 

Sorry, no experience with those. I also don't know how the fluval flex light compares to the spec (the spec doesn't have RGB customization). The spec light is a decent medium light.

[amr427]

I bought different intake covers and spray bar attachment from a shop on Etsy. That is the old mods I have made to my Fluval Flex 15.