***oops missed the word
"THESE"
lol sorry well since i put some effort in this reply,, I will leave it alone
i have giant danios and they love the current,, very fun to watch for dithers.
here is the list of my circulation: (diagram to follow)
600gph with sump, return and overflow both at top of the tank.
1200gph Hydor Koralia power head, near the bottom of the tank
300gph filter outlet on top, inlet near bottom.
The power head is at the bottom of the tank to add lower water
movement,, it was a dead spot,,,, lol not any more!
This tank has been in transition from an african chichlid tank to a loach
river tank and with the addition of the Korilia the changes were dramatic.
The sump return and filter return were ok for current and served its
purpose.. but the Koralia added vast amouts of water movement.
My sand is moving from one side of my tank to the other and into caves
and other nooks... it is very cool to see. My largest clown went right in
front of powerhead and just swims against the current,, I catch him doing
this several times a day... he is not in some panic to get out of the tank,,
but rather he seems to coast there enjoying the water movement. He will
sit on the bottom with the current flowing over him as well.
With the addition of more current, all the loaches are out a lot more
"playing" in the current. They are a lot bolder than before and seem to
enjoy the improved flow. I just feel real bad for my two otto's that have
to work so hard to find a slow spot
I am currently working on the sump. I had a buddy build a custom sump
that has a large middle compartment(~20gal) I used to raise baby
chichlids. This method worked fantastic and I want to raise other things in
it now. It has lighting on the same timer as the main tank, a powerhead
sponge filter w/ 2 biowheels for added filtration, and other more standard
gear. I am currently adding a baffle to make 2 compartments, one w/
bioballs and the other compartment is for raising shrimp and snails. I
currently have quite a few snails and some shrimp in there atm. Since
this is more of an experiment,, I will let everyone know of its success.