Ok, so I bought 2 beautiful males and rec'd them last week. Well one of them just up and died and I still don't know why (I think his tank became contaminated with an unknown substance...). The second one was doing beautifully and low and behold I get up today and his fins are shredded and torn and his dorsal has a big hunk missing. When he arrived from his shipment (in a box for less than 24 hours) he had a little bit of his tail missing, so I suspect he may be a tail biter... my other suspicion is the filter intake. He seems to be fond of hiding near it...so I added some extra plants and he hasn't stayed near the intake (unless he does it at night?). He is a DTHM and he is my very favorite little guy, so please help me. :)
He gets weekly 100% water changes and 50% on my day off.
NH3 0.25 (I know, it's high)
The fins don't appear to have any fuzz or slime and he's really active (as can be witnessed by the blurry pics!) He doesn't have any tank mates and the tank is filtered by a whisper internal filter (size appropriate and turned on the lowest setting). He has one plastic plant and some live riccia and cryptocorne in the tank... His appetite is fabulous and he loves to come up to the glass and check me out :)
My questions are: what caused this and what the heck do I do about it? I know I did a big no-no by not cycling his tank before I put him in there but I was hoping extra water changes would make up for it (obviously it isn't..should I increase these to 25%-50% daily?) I've cut the filter off for now...
Thanks in advance!