your tanks severely overstocked. Until you reduce your stocking you will keep losing fish.
Can you post water stats please in ammonia, nirite, nitrate, and ph.
If the clown loach is skinny when still eating he could have skinny desease which is an internal parasite.
How big are the spots on the eye, size of a grain of salt or bigger.
Special problems:
There is a couple of things that you should keep watch for concerning Clown loaches. The most common problem is white-spot, these fish are easily struck down by this disease. This often occurs when the fish have been kept too cold or in newly bought fish after being transported. Habitual fish that are well cared for are not more susceptable than others, in the ten years that I have kept these fish privately, I have only had white-spot once. For safety´s sake always have white-spot medicine at home if you acquire botia, it can save lives. White-spot is easily cured but can be a catastrophy if not treated.
N.B! follow the dosage instructions carefully for all medicines, some medicines recommend half the normal dosage for just loaches, because they can be sensitive to some ingredients, mainly coppercombinations.
Loss of weight or "skinny disease" is also quite common in Clown loaches. Typical symptoms are loss of weight and behaviour known as "knifeback" even though the fish is acting and eating normally. This sickness is more difficult to treat, it comes from a parasite organism (spironucleus) in the intestines of the same type that is thought to cause the so called "discus disease". I have successfully removed this disease from newly imported fish by using Spirohexol from JBL in the form of tablets. I have taken one tablet and crushed it and dissolve it in as little water as possible. I have then used discus granules which have been soaked in the solution. It becomes like a thick porridge after a short time when the food has drawn in the liquid. I then feed this to the sick fishes, after a week it looks like the sickness is gone. For the best possible effect do not feed with any other food. Flagyl (Metronidazole) also helps fight against this sickness but at least here in Sweden it is on prescription and can be a little difficult to come by.
Apart from this Clown loaches are not more susceptible than other fish, the above sickness usually occurs in fish that have been stressed during transport or subjected to other stress factors like cold water or poor aquarium hygiene. Do not buy fish that look emaciated! Well looked after fish are seldom sick. To quote my friend Elisabeth Hallberg; "the best way to avoid sickness is to keep the fish healthy".
Info take from here.
http
/www.bollmoraakvarieklubb.org/artiklar/praktbotia/clown%20loach.htm
? thanks once again for your advice
