hi there. try and find a piece of pipe that is the same diameter as the output on the filter, for example a piece of hosepipe, or airline for a smaller filter, cut a piece large enough to run along the back of your tank and drill several holes a good few mm diameter each along the entiner length of the tube, this should help distribute the flow more evenly and help create a stable current
came home this morning to find one of my weather loaches had worked his way behind my filter and was laying very still, after i had moved the filter he was laying very still, i couldn't see any gill movement but he was moving his pectoral fins and twitching his tail slightly which made me think he was alive
i held him in my hand (in the tank) and he managed to swim slightly but then just sank to the bottom of the tank where he is now laying on his side, with the occasional twitch i am just about to do the emergency water change to see if that has any effect, what could have caused this sudden loss of energy?
a powerhead is basically a water pump, think of your filter without the sponges in it, it sucks in water and blows it out in another direction usually at quite a high rate of flow.
ive got a huge hollow shipwreck in the middle of mine but have an airline in it so every few seconds it releases bubbles, would that be enough?, there are loads of holes in the shipwreck for the fish to get in and out of, and my loaches like to hide in there a fair bit
he is in the bucket but i put one of my main filters in there turned to low (150l/h).
i wouldn't want to transport him in his current condition, i would have to be on foot and if theres not much the vet can do then perhaps, and i didnt really want to consider this, should i consider euthenasia?
it looks incredibly painful and i would rather the fish died a bit more peacefully than letting it get worse, trying to do something about it and all the stress...