My african cichlids have been glancing and staying at the top of the tank the last few days. I added an airstone thinking maybe they needed more air, but it hasn't helped thus far. The tank is 80 gallons running an ac30 (hob), afluval 405, and a sponge filter. The temp is 80 degrees and doesn't change much. The water parameters are as follows
PH- 7.5
KH- 120ppm
GH- 220ppm
Ammonia- 0ppm
Nitrite- 0ppm
Nitrate- 0ppm

I know the KH is low but I don't know how to safely raise it. If you have any help please let me know

Hmmm, are they eating? Have you added any fish recently? The Nitrates should not be zero....I am wondering if maybe your tests are being done incorrectly or out of date... Is there any elements that could of entered the tank?

I have only added one fish recently, my nitrites were closer to 0 then 5.0 so somewhere in between. The tests are only a couple months old and yes they are eatting

If she's got plants in there the nitrates could be at 0. Always wigs me out with the over planted goldie tank.

its african cichlids there is definitely no plants haha, could it be way to over filtered?

No, you said your NitRITES were between 0 and 5.0 which would explain why the fish are acting stressed unless u meant NitRATES. I would do a water change and add some water conditioner which will make the nitrites non-toxic to the fish.

She has Africans saint, I assumed there was no plants but you are right with heavy plants and good filtration the Nitrates could be zero or close to. You can never really over filter though.

I thought plant eating with Africans was on a species by species basis, since the giraffe ones that were here for a while generally left the plants alone.

Well, seems like if they don't eat them eventually they breed and will move them.

they had gill flukes, and have since been treated with prazi. thanx for the help fellers

No prob. Glad the prazi worked on the africans.