I don't think it was bashing, but I do empathize with your annoyance at the seemingly default "get a bigger tank" response. I have a feeling that you know when to move a fish that has gotten too big.
I would ask that you not give up on this thread just yet. I may be experiencing your exact situation in a few months when my new babies grow big enough to join the larger tank. I've had a sen. for a VERY long time, and he's somewhere over 10" at this point. I just recently went bichir crazy and bought a baby del. (who's a thick 3-4"), a baby ornate (a skinny 2-3"), as well as a baby albino sen (the runt of my bichirs). When I combine these fish in a few months, this thread may help prevent some of my frustration.
So if you don't mind, come on back, and just do what I do whenever i see the "tank is too small" : read the next post
The good news is that I have yet to notice any fin or scale damage from any of the altercations. Ornate was placed into the 115 high as a precaution. It was in a different tank with two similar sized Bowfins, and I noticed a perfectly round mark (similar to a bowfin mouth sized hickey) on the Ornates underbelly, although I never witnessed either bowfin show aggression in the least toward the Ornate.
The Ornate healed within a month of transfer to the 115. It is slated to go into one of my 135's (Oscar tank) after the four 16+ " Bowfins are re-homed to larger Q T ponds, and then ultimately to my spring fed pond. (~ 150 diameter dredged to 15 feet over a decade ago.)
I never even considered housing the baby Truges with any of my adult bichirs.
Please take this advice with a grain of salt, dismiss half of what I am about to suggest, and make up your own story for the rest.
I faithfully read and follow the information in the Poly sticky section (Primer 1.0). These two excerpts are pasted directly from this sticky:
{Quote}
Care of young
Young bichirs in this example P.senegalus, As they
breed in captivity and are now being farm raised
and are the most readily available subjuvenile of
the bichirs and the cheapest ( $5-10) range
and they are incerdibly small when we buy them
2''-3'' is about normal .
This is how I raise them certainly there are other
ways. I use the step up system in other words
small fish small tank as it grows I move it up
to bigger tank. Its a three step process I use
they start off in a 10 gallon tank with the water
level reduced to about half the tanks volume
fine gravel or sand for the substrate and silk
plants for cover and to float in.I use a sponge filter At this stage
they are fed bloodworms and baby brine shrimp
chopped squid and very small silversides
I feed small portions a few times a day.This
isn't possible for many but try feeding morning
and again at night, between now and 7" they
are undergoing their greatest growth and are
hungry constantly
When they reach approx. 5'' i add a small
power filter and raise the water level to approx
2 inches under the trim frame.At this size they are
bigger foods small feeder, ghostshrimp,bloodworms
earthworms etc .They stay in this tank till 7-8'' at which point
I move them to a 20 gallon long for final growout
These steps allow the bichir room to exercise
but still small enough so its easy to find/catch
food. Of course if I get a bigger specime
5-6'' they would go into the 10 gallon then move
up to the 20 long this gives me time to watch
for any signs of illness. Remember many bichirs
are wild caught quarantine is a good habit to get into .
Tank size
Bichirs do not need a great deal of water depth in their tanks 8 to 12 inches is actually
sufficient for any of the species.The minimum tank size for a single small species of
bichir is a tank with a footprint of 36''x12''x16'' your standard 30 gallon tank.however
bigger is almost always better so if you're looking to primaraly house bichrs listed below are
some tank sizes to consider for the smaller species.
30 gallon 36''x12''x16'' (this is the minimum size for 1 smaller species bichir)
30 gallon Breeder 36x18x12''
33 gallon Long 48x13x12
40 Gallon Breeder 36x18x16
40 gallon Long 48x13x16
50 Gallon 36x18x18
75 Gallon 48x18x20
125 Gallon 72x18x22*See note
150 Gallon 72x18x28 *See note
for the bigger species
120 Gallon 48x24x24
180 Gallon 72x24x24
The above are fairly standard sized tanks and should be available thru your local stores
*note The difference here is in the depth of the tank 6'' unless you feel the need for the
extra depth the 125 is the better/cheaper choice.
{End Quote}
Hopefully this will at least put you in the right direction. Please prepare to have thicker skin that I looking for data on these creatures outside of the sticky section of the forum. Hopefully you can encourage better responses to the questions that we both have.
I will happily benefit as a lurker from any quality information that you can extract from the MFK community.
Best of luck!