I have 6 clown loaches in my tank, they are all very active, eating well and seem healthy. However, over the past few days I've noticed 2 of them rubbing their sides against the top of one of the pieces of wood I have in my tank. They swim towards the wood at high speed and then turn on their sides as they reach the wood so it scrapes them.
Is this "normal" clown behaviour or is it a sign of infection such as Ich?
In the same tank I also have 3 tetra's, 3 dwarf gourami, 2 bristle nose catfish (each only 6 weeks old), 1 pleco and 1 knifefish.
The clowns have been in the tank for about 3 weeks now and seem happy other than this behaviour. They often hangout and snooze on top of this piece of wood together during the day, although 1 of the biggest loaches is very shy and spends most of the time hiding.
70 gallon tank, Ph 6.6, 0 ammonia/nitrite, very low nitrates, canister filter.
Any advice would be appreciated!
6.6 pH seems a little low to me, and maybe you can modify your system so that the water is more neutral, less acidic.
Loaches have very small scales and delicate skin, but also a fairly thick slime coat. The slime coat might not be able to develop properly in water that's as acidic as that.
Just a guess.
Mark is right about the irritation though. I'd keep a close eye on them. They could have a low grade ich infestation or parasites in the gills. If they don't stop flashing in a day or two, get worse, develop other symptoms (like rapid breathing) or you begin to notice more fish are being affected, I'd consider treating the whole tank for parasites.
You probably already know this, but if you quarantine your new fish for a few weeks before adding them to the main tank, these sorts of things are easier to treat and all your existing fish stay healthy.
If it's just the piece of wood they are flashing off of, then I wouldn't be overly concerned. When they start flashing on every object in the tank, including the gravel, that's when you need to worry and get the meds/salt out.
Since your clowns have only been in the tank for 3 weeks, keep a real close eye on them for ich.
My guess is that you have removed beneficial bacteria by removing the old substrate and the water quality is now not that good until the new substrate matures.Could it be the change from gravel to the sand substrate?
I'd increase the water changes substantially for at least a couple of weeks.
I'd think loaches.com was too small a target for most spammers but it happens a lot these days.
I felt Tikobird was genuine in asking questions without iffy links. I appreciate they did a search for a fairly ordinary topic here, even it's very old.
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