Temp is always between 75-80f. No higher, no lower.

PH is always 7.5, as i've been told to try to get 8.0. But i think 7.0-7.5 is good.

How am i supposed to know how "oxygenated" the water is?

I feed bloodworms and every now and then some brine shrimp, this is all i can get in my area.

I really don't think its the "gas bubble" disease, as i've done my own research on it. The "symptoms" are not what they have. Both of them get ONE bubble under their chin. Same spot, same size, same everything! Nowhere have I read that the bubbles form under the chin in "gas bubble" disease.. maybe i've been reading in the wrong places?