Hey guys, I recently got some Otos and don't think they are quite doing well in my tank. It's a relatively new 75 gallon tank, but used stuff (water, filtration media, gravel, decor) from the fully cycled 30 gallon tank I had before it. Luckily, it appeared that the new tank didn't undergo a mini cycle.

I recently had an outbreak of ich (7th day of medication), and some other strange issues, but ended up purchasing the otos even though it probably wasn't the best decision. My justification for this was because of what I had researched/been told about ich, was that fish that have experienced ich may not get it again in the same matter of fashion we get immuned to chickenpox. Thus, I pondered if it was worth trying to get any new fish I'd be interested in, exposed to the weakened state of ich so that it would help immunize them for any future outbreaks of ich (which during my short experience of fishkeeping, I've been reading that I should expect to see it again -_-).

Anyway, I know not if I was a fool to do that, so feel free to bash me in the head for that one.

Nonetheless, they have been purchased and I did my best to acclimate them for two hours because I have read that many oto buyers have often lost the otos over the period of the first few weeks.

Never having had otos before, I'm not sure if they are just being them, or if I have done wrong.

High temperatures and medication and slight aquarium salt is present in the tank for ich.

They don't interact with one another (I have bought 3), they go around trying to find something to munch on every now and then, and are usually stationary most of the time when they aren't trying to graze the decor. Their... neck below the mouth of their underbelly, is reddish, I doubt that is normal?

I've placed algae wafers and zucchinis (I microwaved slices of them, but read you should boil?) to try to get them to eat, but no avail. Alongside them, I had also purchased 3 dwarf siam loaches, and they seem maybe a bit too happy if anything. All other fish including the siam loaches eat. (Nobody seems to really eat the zucchinis however, despite all that I've read about many fish loving them)

Any suggestions or thoughts?