Enough Flow in Fluval Evo 13.5? Please Help.

[Drew1600]

Hi all,

I was just wondering if I have enough flow going through my tank/if my coral are happy enough? I have a Compaction 1000 (250 gph) running though a random outflow pointed towards the back as it was how the head attached best. Cascade 500 pointed to the surface for agitation. Should I reposition any flow? Don't really want to add a powerhead but will if necessary, and any suggestions on very low gph ones? Currently 1 striped blenny, adding clown pair this week. Cleaner shrimp & CUC.

Thank you all so much, any help is greatly appreciated

Coral stock:
Clove Polyp
Devil's Hand
Toadstool
Red Montripora
Purple Haze Montipora
Zoa Colony
GSP Colony
Hammer Coral - my fav
Xenia (on the comeback)

Just turned on the lights so not everything had opened for the day yet.

 

[Ron Reefman]

I'd guess you do, but it would be helpful to know the flow (gph) of the Cascade 500?

 

[Drew1600]

I'd guess you do, but it would be helpful to know the flow (gph) of the Cascade 500?

Sorry I forgot to include that initially! I believe the Cascade is just north of 100 GPH.

 

[NeonRabbit221B]

I would get a stronger pump but I think that will do fine. I ran my setup just like yours for a few weeks but found detritus buildup. I used the Y connector to opt for 2x 1/2 RFG. Running a Syncra Silent 1.0 so my rate is closer to 250 gph. RFG work best at higher flow rates and I believe they are spec to work at certain flow rates

 

[najer]

I run an Eheim 600 return and a 500 gph powerhead flat out, it is quite draughty in there!

 

[Drew1600]

I run an Eheim 600 return and a 500 gph powerhead flat out, it is quite draughty in there!

Is the 500 GPH not too much for your fish in that size of tank?

 

[najer]

Is the 500 GPH not too much for your fish in that size of tank?

I have a pink streak wrasse and a twin spot blenny, they are cool.

 

[Ron Reefman]

So you have 350gph of water movement in a 13.5 gallon tank, is that right?

That's about 26 turns per hour. That's near the bottom end for a soft coral tank. 35 is more common, I think. And some sps tanks get over 60 turns per hour.

 

[Drew1600]

Thank you so much for the reply! Added a 190 gph powerhead and repositioned flow, will post new pics later. Thanks again!

 

[Ron Reefman]

I think you entire tank will be happier with the additional flow. But then I'm a big fan of both more flow in general and very randomized flow in particular.

 

[Mogwai]

Hi all,

I was just wondering if I have enough flow going through my tank/if my coral are happy enough? I have a Compaction 1000 (250 gph) running though a random outflow pointed towards the back as it was how the head attached best. Cascade 500 pointed to the surface for agitation. Should I reposition any flow? Don't really want to add a powerhead but will if necessary, and any suggestions on very low gph ones? Currently 1 striped blenny, adding clown pair this week. Cleaner shrimp & CUC.

Thank you all so much, any help is greatly appreciated

Coral stock:
Clove Polyp
Devil's Hand
Toadstool
Red Montripora
Purple Haze Montipora
Zoa Colony
GSP Colony
Hammer Coral - my fav
Xenia (on the comeback)

Just turned on the lights so not everything had opened for the day yet.

I have an Evo 13.5 and I'm currently using the stock pump (132GPH) and a Fluval CP1 (265GPH) giving me a total of 397 GPH in that tank. That's almost 30x the circulation rate. I have 2 clowns, 1 Fire Shrimp, 1 Turbo Snail, 2 Trochus Snails, Zoa's, LPS and softies in this tank and they seem to enjoy the current flow rate.