Signs of ich after reactor install

check your Alk. When you run GFO it will drop your alk pretty drastically

 

It could be a change in water quality that could stress fish it's really hard to say. The UV isn't going to kill the ick unless the flow is less than 12gph through it (assuming you have the 36 watt one) The turbo twists are essentially useless against ick. Ick requires 336,000 uW/scm2 of radiation to be killed.

 

when you first add it from my understanding.

 

It could just be your sand on them to. Don't panic just keep an eye on them... I was thinking the same thing a few times, but ended up being just sand on them.

 

Did you rinse the carbon and gfo before adding? Also, ate you tumbling either of the two medias excessively?

 

Gfo is supposed to "dance" at the surface and all of the media should be tumbling, it binds together easily. Carbon is supposed to be held inplace with two foam pads so it doesn't move at all, if it tumbles it'll break up into carbon dust, which is very hard on fish. When I rinse my reactors, I put the media in the cartridges, install everything, then put the outlet tube in a bucket and ruin the medias until they run clear, shaking and opening/closing the valves to ensure it's rinsed good. Once it runs clear and it's rinsed good, I adjust it so the gfo is tumbling and carbon is held in place with pads, I quickly stick the outlet tube back into the tank. My carbon usually runs wide open since it's held in place. I have two single reactors , but mine are fed from a manifold on my return pump.