A question for the plecophiles...

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jjohnwm

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Mar 29, 2019
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I'm not a pleco guy, minimal experience with only a few common species of them over the years. At the moment my question relates to a trio of Hypostomus laplatae (Red-fin Uruguay plecos) that have done well and grown from 2-inches to 10-12 inch lengths; but the same general question applies to other species as well.

I use 1-foot sections of concrete drainage pipes with an inside diameter of 3.5 inches in most of my tanks as hides and shelters. They're heavy, quickly become overgrown with algae and look...well, perhaps not natural, but at least they blend in nicely with the driftwood and rocks. The laplatae have always used these pipes but now they have achieved a size that requires them to fold their pectorals all the way back to enter the pipe. The biggest of them appears to be actually scraping the sides of its pectoral spines as it rests in the pipe.

I'm wondering if this will result in damage? At the moment, there is no noticeable mark on the pectoral spines to indicate a problem. I have in the past lost a number of Bristlenose plecos who jam themselves into crevices in driftwood, don't extricate themselves and are found dead on the floor after the wood has been removed for awhile while working inside the tank. This has made me more than a bit gun-shy about the situation. Are the laplatae going to jam themselves into too tight of a cavity and suffer for it? It seems unreasonable to worry about it, but...

Obviously I could discontinue use of the concrete pipes, but they work so well with other species of fish that I am loathe to replace them with ABS or PVC. Cichlids spawn in them, Java Moss and Black Beard Algae grows readily on them, loaches and other secretive fish hide inside.

They're one of the best ways to catch shy fish without tearing up the whole tank in the process. Wait for the fish to enter, quickly slap a net or your hand across each end of the pipe and you're golden.

In any case, there are numerous other hiding and resting spots under/behind large pieces of driftwood and rocks, but the fish seem to prefer those pipes most of the time.

I've also recently bitten the bullet and purchased a single Hypostomus luteus, the most expensive single fish I can recall ever buying. He's still a bit too small for this to be a worry but...he'll grow...

Any comments or opinions gratefully accepted. :)
 
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Congrats "pleco guy" 😉 on the new H. luteus. My buddy just got another one too, 11"... Expensive, but nothing compared to the 4" Pseudacanthicus sp. LDA05 I recently purchased...😓 I'm more of a plecoholic than plecophile...

I'm no expert so will defer to others w/ more experience, but I do not believe all plecos need actual caves. Rather I think you'd be fine using driftwood and rocks to create hides. The same buddy who got the 11" H. luteus breeds tons of plecos from small plecs like H. zebra to his current breeding groups of Pseudacanthicus sp. L097 and L114. He has pulled all caves from his display tanks which include a few Hypostomus species, and only uses them in breeding tanks. The more nocturnal plecos still seek out places to hide among the driftwood and rocks, but don't seem to suffer from the lack of caves..

I've got plecos in all but 2 of my tanks and have caves in some w/ the smaller plecos.. In tanks w/ larger plecos I tend to just have driftwood and rocks. I use natural grapevine caves for my cichlids, and some of my larger plecos will also use these caves... But my largest, L095 prefers to stay on the underside of driftwood. My Scobinancistrus, Baryancistrus, Hemiancistrus and previously, Panaqolus, and Hypostomus species also seemed to prefer to stay out in the open on driftwood rather than in caves. If you prefer to keep using caves, I would seek or build something bigger to avoid further damage.. Plecocaves.com does have some bigger options, but not sure if they make any big enough for your needs...
 
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