I have now had 4 of 5 loaches die, last night I checked my water because I know Loaches are sensitive, Ammonia 0%, nitrite <0.3%, P.H 8. My water is supper clean because I keep an Arowana, it cycles about 9 times an hour. The temperature I don’t know because I live in the tropics and never bother with heaters, although the water did feel cooler than normal due to current low pressure and rain.
While checking the water I found the problem, it isn't my Arowana, he has a look but leaves the loaches. The problem is a big parrot Cichlid, I saw it corner a loach and ram it over and over. It died soon after.
When my Arowana was young I used to worry the Cichlid would kill it through ramming it, I should have guessed what was going to happen to the loaches.
The parrot Cichlid was the first fish I ever bought; it cost me about a Dollar and grew big. I have changed my tank over the last week to try and house Loaches with my Arowana. Further more the Cichlid has always stopped me training my Aro to eat pellets because it’s greedy and eats everything. A few people may disagree with what I did and how I did it, but the Cichlid met its end last night after the fourth loach was killed. I did it as quickly as possible, I also had no qualms over doing it, and the loss of one killer to preserve more life is cool with my Karma.
I now have 1 clown loach and I’m going to buy more to try again. Thanks for all the advice given, I’ve learnt about tanks, water balance and Asian Arowanas from this site, I am now learning about Clown loaches.
I don’t know if anyone has been following this but like all of you I HATE buying fish for them to die because of something I may have influenced, or didn’t think about. Any Cichlid of any type should be on its own IMHO.