koralia power head

[icedone]

Has anyone hooked a reostat up to one of these to control speed.my LFS said the 4 was made for my 75g but it seems too strong IMO for my tank.They will not refund or trade for a 3 and not enough $ these days to buy a 3.

 

[mdaniel2882]

I don't think that will work....If it did why would they ever sell controlable powerheads for twice as much.

that is a strong pump but try working with placement. put something in front of it or blow it up and into the glass.

 

[thominil]

Aim it towards the surface. You will lose flow and you are agitating the surface which is a big plus.

 

[InfernoST]

Has anyone hooked a reostat up to one of these to control speed.my LFS said the 4 was made for my 75g but it seems too strong IMO for my tank.They will not refund or trade for a 3 and not enough $ these days to buy a 3.

A rheostat is used in DC electrical/electronic circuits not AC. In order to vary the speed of a n AC motor you would have to adjust the frequency not the voltage. Using a household lighting dimmer would probably work but not recommended as this device varies the frequency.

 

[CementShoes]

sell it on CL or your local reef club for the price of a 3 , or ask for a trade for a 3. I'll bet there are plenty of people looking to upgrade as there are to downgrade

Or here even, though this doesn't seem to be the best venue for that

 

[ccCapt]

The only way you can safely "control" a regular Koralia Nano thru K-4 is using a Seio Controller. It will alternate the power from 100% down to 50% and back up again.
Depending on what corals you keep, you can easily run 2 K-4's in a 75.