would this work?

[smith1571]

I have a 65 g tank and there are always ammonia spikes even when I have one fish in the tank.
I was thinking if I had a couple of big trash cans filled with salt water that were in a closed loop with my tank would that be effective and worth the cost of heating the water?

[edwing206]

You shouldn't have ammonia spikes unless something is dying off.

[drummereef]

I'm not getting the correlation of heating excess water and ammonia spikes. There should be no ammonia unless a death has occurred or the tank is going through a mini cycle. What test kit are you using and is it old? I'd get a better kit and double check the level. ;)

[smith1571]

Nothing has died but there was an awful lot of junk floating around win I stirred the tank today. What is all that grey stuff that settles on the bottom of the tank? (I have a bb tank) Would that be the reason.
Also when I say ammonia spike I mean .5ppm. How harmful is that?
Thanks for any imput because I ordered $120 worth of fish and my test kit says .5ppm