Activity level vs tank temp

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jdryden

Feeder Fish
MFK Member
Sep 5, 2007
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Bentonville, Arkansas
"Bichirs prefer high 70's to
mid 80's water tempurature"--Beblondie

This is straight out of Anne's polypterus primer. Has anyone noticed different activity levels out of their polys at different water temps? I currently keep my tank around 82 deg and the only fish that are remotely active are my sens and my ropes. You always hear people posting about how active their (insert species here) are. Well my delhezis, ornate, and palmas pollis aren't the least bit active. Could there be a correlation with the warmer water and the lowered activity level? How about listing what you keep and the temp along with how active you would consider your polys.

Tank: 82
Activity level: Are you still alive?
 
tank is at 26°c and the ornate is semi-active, the endlicheri is pretty inactive unless theres food about..
 
Are they more active at night?Bichirs are never really the most active of fish and their activity levels in many species seem to be lighting oriented.My tanks are all set at roughly 82F.My senegals tend to be the most active with delhezis coming in second
cruising the tank about once an hour P.Pollis come in next about the same as delhezis
my ornate is pretty much a log during the day but cruises at night as does my endi.Age also seems to play a part in activity my older polys seem not to be as active as younger
ones.Also being bascially ambush predators can come into play they tend not to waste energy searching for food but wait till recognized foods get within range then move-Anne
 
From what I observe, my most active bichirs are the pollis and senegals. I've always thought dels are fairly inactive and actually think my ornates are more active. I also have endlis that are more active than my dels. Although the thing about dels is that they aren't shy as the ornates and endlis so they don't bolt and hide every time they see me. I also have laps and a moke but they're very shy and would only really come out of hiding during feeding time. Aslo I find that bichirs tend to just sit there when full and become more active when hungry. This is why I only feed mines only every few days. This lets them fully digest the food in their stomachs and when hungry they swim around look for food. I keep my tank at around 78-80F.
 
beblondie;1428091; said:
Are they more active at night?Bichirs are never really the most active of fish and their activity levels in many species seem to be lighting oriented.My tanks are all set at roughly 82F.My senegals tend to be the most active with delhezis coming in second
cruising the tank about once an hour P.Pollis come in next about the same as delhezis
my ornate is pretty much a log during the day but cruises at night as does my endi.Age also seems to play a part in activity my older polys seem not to be as active as younger
ones.Also being bascially ambush predators can come into play they tend not to waste energy searching for food but wait till recognized foods get within range then move-Anne
Click to expand...

It's kind of hit or miss on the lighting. Sometimes I can kick the light on and see them scatter other times they seem to stay hidden even with the tank light off and just the room light on. I'm only running one 48" single tube light on the tank and am in the process of adding alot more plants. I have about 4 pieces of driftwood right now that usually serves as the hide out for the pollis. I'm just curious to others experiences.
 
i agree with whats been said.

there are really only a few species that are consistently active, and even then it depends somewhat on the individual. one of my palmas polli is very active. i also have pretty active senegalus. my delhezi are what i would call semi-active (moments of activity here and there). i had a ropefish before that was decently active. my big ornates are quite active too, but that might be because they can't really hide since they're getting too big for the tank, so it seems like they're always out.

other than these, the other species i would categorize them as basically inactive.

as for night vs. day, ime there are definitely those individuals that become active at night (with very dim room light on so i can see them). and others that basically still just sit there and do nothing, only difference being instead of sitting underneath driftwood or at the back of the tank, they're now sitting all over.
 
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