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Biggest Mistakes?

Abominus

Redtail Catfish
MFK Member
Jan 27, 2023
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So what are the biggest mistakes you’ve made in the hobby?

I’ve made numerous, to be honest, lol.

My first major mistake was buying an 8-inch iridescent shark for my 125-gallon pool pond. It didn’t eat, and after doing some research, I found out they need to be kept in groups. My idiocy knew no bounds, as I went ahead and purchased three more. My sharks were happy, eating, and swimming around just as I had hoped.

However, like all hobbyists, I felt the urge to add more fish. I increased my stock to a total of 11, including 4 silver dollars (SDs), 4 iridescent sharks (ID sharks), 1 oscar, 1 zebra tilapia, and 1 Raphael catfish.

Fast forward, I began to suffer losses. I came here asking for help, sharing my miserable story and problems, just to drown out the regret I felt.

Moving on, I set up a larger inflatable pool pond on my rooftop, happily placing my fish in it. I thought everything was going perfectly until one night, I found my fish all frozen in the water. Temperature—dang, I hadn’t thought about it! I quickly brought them inside, and thankfully, some survived.

After more thinking, I concluded that a bigger pond would solve my difficulties. I bought a 1,700-gallon pool, set it up, and put my fish in again. To make things worse, I asked for further stocking suggestions here and added a pacu and more fish to it.

Soon, the water turned green, and ammonia levels rose, highlighting my most stupid mistake—neglecting filtration.

Another “genius” idea popped into my head: an aquarium! I went to the LFS, bought the largest tank I could afford—a 45-gallon—and brought it home. I dumped all my stock into it, about 15 fish, including my pacu and ID sharks. Then, the inevitable happened: I lost my fish.

I couldn’t figure out what went wrong. My fish paid the price for my stupid, stupid mistakes, and I lost four SDs, one Buttikoferi cichlid, and one ID shark.

With that bioload gone, the remaining pacu, two ID sharks, and one Raphael catfish managed to survive. About four months later, the pacu grew huge, knocking against the tank walls and stopped eating. I then posted another thread, pretending to be my cousin, asking whether pacus could break a tank, just to avoid getting flamed by other members.

Once you guys told me it was most definitely NOT FINE, I set up my 1,700-gallon pond again and put the fish back in. I added an RTC, a snakehead, and a bichir. Soon after, the temperatures dropped, and I lost the RTC and the bichir. I was stressed, sad, worried, and frustrated.

At last, I thought through my problems and got a 500-gallon kiddie pool, the largest I could fit inside my room. This setup has been running for more than six months without any issues—no temperature, space, or filtration problems. Well, the space will be a problem in the near future when I eventually have to give away my RTC and maybe even the pacu.

So, this was the story of my most idiotic mistakes—actually, almost the entire history of my fishkeeping journey. However, since last year, I’ve matured, taking each step carefully and doing research before making decisions.

Still, I can’t forget my horrible past. I’m keen to hear about other members’ mistakes, so hopefully, I can drown out the terrible feeling I have about killing all those fish, a feeling that haunts me every night


EDIT: Just saw how long my ranting was lol
 
I was in this hobby years and years ago but came out of it because I wasn't settled anywhere at the time, and moving tanks around from home to home was a pita. So I quit, never really thinking that ever I'd get back into it.

Fast forward many many years to Aug 2015 when, by this time I was married and settled in our family home, the wife, totally out of the blue one day brought home a little 10g "starter kit", with light, heater, filter, you know the ones I mean. She'd bought it for our youngest son, and I thought......oh dear!!

I set up that little tank, knowing full well what could happen if I got the bug again. I was adamant that it wouldn't happen and that I'd never go down that crazy road again.

That was my biggest mistake right there!! Underestimating the allure that this crazy hobby has over you once you get started.

It was only a matter of weeks before we took delivery of a 180g, and a couple of years later we shoehorned my 360g in too!

Over the years the wife and I have had many crossed words regarding my hobby, and I just nonchalantly turn round to her and say......"well you started it". Lol.
 
I was in this hobby years and years ago but came out of it because I wasn't settled anywhere at the time, and moving tanks around from home to home was a pita. So I quit, never really thinking that ever I'd get back into it.

Fast forward many many years to Aug 2015 when, by this time I was married and settled in our family home, the wife, totally out of the blue one day brought home a little 10g "starter kit", with light, heater, filter, you know the ones I mean. She'd bought it for our youngest son, and I thought......oh dear!!

I set up that little tank, knowing full well what could happen if I got the bug again. I was adamant that it wouldn't happen and that I'd never go down that crazy road again.

That was my biggest mistake right there!! Underestimating the allure that this crazy hobby has over you once you get started.

It was only a matter of weeks before we took delivery of a 180g, and a couple of years later we shoehorned my 360g in too!

Over the years the wife and I have had many crossed words regarding my hobby, and I just nonchalantly turn round to her and say......"well you started it". Lol.
LOL
So your wife was the 'Angel in disguise', or in this case, the 'Devil'!
:ROFL:
 
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My biggest mistake was putting too much algae killer in the tank, which caused a green plague that killed half my fish. The second mistake was mixing large African Haps with smaller dainty Angelfish (yes, the Haps killed the angel brutally).
 
My biggest mistake was putting too much algae killer in the tank, which caused a green plague that killed half my fish. The second mistake was mixing large African Haps with smaller dainty Angelfish (yes, the Haps killed the angel brutally).
Oh come on, am I the only one that fu#cked up that bad!
 
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My two worst mistakes.

Went to the racetrack for some spins on my birthday and dinner (I was treated to a lesson and meal). Got home late Saturday and FOOLISHLY thought I could come home near midnight and do a water change on the 225. Went upstairs and FELL ASLEEP during a water change. Something woke me up. I got that 'terrible surge of adrenaline gut cramp' and raced downstairs. I could smell moisture on the second flight and saw WATER. The entire basement was flooded and water was going under baseboards and into the furnace room.

Took me 7 hours to clean up and two weeks to dry out. I ran turbo fans, put mold treatment stuff on walls, sprayed for knats, and ran a dehumidifier for days. I also went out and got a big water vac. In the 225 the fish were just fine. Brick, my legendary Oscar was enjoying himself swimming ABOVE the water line with his back out of the water like a shark.

The second bad mistake was nearly cooking my beloved pink parrot Patch. During a water change I went by the hand method to figure the temperature. Filled the tank and she went berserk, swimming wild and bouncing off walls. I thought she was crazy. Turns out I was the crazy one. The water was nearly 120 degrees! In panic I dumped ice in, drained water and replaced it with cold. She was okay after that. I discovered my hands have high tolerance for heat and have used meat thermometers since.

More recently I trusted my temperature settings during a water change of the 125. I do like a 95% change because of all the big male hrps in there. I went downstairs and all the fish were at the bottom breathing hard and sitting still. ALERT! Before I could put my hand near the water I could feel the heat. Drained out 50% to cold tap, raced upstairs and got a couple pounds of ice (that melted right away). They were ok. That could have been a real disaster. Water well over 100, between hot and steaming. Can't believe how tough those hrps are.

The breakfast of champions

candee.JPG
 
My two worst mistakes.

Went to the racetrack for some spins on my birthday and dinner (I was treated to a lesson and meal). Got home late Saturday and FOOLISHLY thought I could come home near midnight and do a water change on the 225. Went upstairs and FELL ASLEEP during a water change. Something woke me up. I got that 'terrible surge of adrenaline gut cramp' and raced downstairs. I could smell moisture on the second flight and saw WATER. The entire basement was flooded and water was going under baseboards and into the furnace room.

Took me 7 hours to clean up and two weeks to dry out. I ran turbo fans, put mold treatment stuff on walls, sprayed for knats, and ran a dehumidifier for days. I also went out and got a big water vac. In the 225 the fish were just fine. Brick, my legendary Oscar was enjoying himself swimming ABOVE the water line with his back out of the water like a shark.

I honestly can't count the number of times I flooded the house during the daily 80% water changes I used to do when I kept my 180gal as a Discus tank in 2017-2019. We eventually got a pretty fine-tuned clean up system going involving multiple family members with brooms all enlisted to direct the water along a path out through the front door. With stone floors & baseboards throughout the home I wasn't too bothered.

But I when I think about all the fish I've kept through the years and I'd estimate 95% of those met an untimely demise sooner or later due to one mistake or another on my part... there are too many mistakes to really mention them all. What's important to me is that I don't make the same mistake twice. Except for the water change flooding of course.
 
My original stocking for my 65 gallon tank was horrendous, at one point it had a like cichlid, an Oscar, BP, 2 EBJD, and the list goes on. Like cichlid died, I took the Oscar back and eventually upgraded them to my 150 which was a big blessing, I got it for around 100$ I believe? And it came with filters, lights, decor, gravel etc. my other big mistake was when I flooded the main floor of my house. I was draining water into the sink in the laundry room and I guess someone had put a drain in it. I was already off my game that day when I forgot about the filters and wave maker lol, long story short, the water overfilled from the sink and got EVERY WHERE.
 
Insisting on keeping a way overstocked tank, if I added additional filtration and did more water changes. Moral- it does NOT work.

The effects of cramped quarters for largish fish go way beyond issues related to insufficient filtration or poor water quality. I didn’t have either of those conditions but still, the fish did not thrive.
 
Brick, my legendary Oscar was enjoying himself swimming ABOVE the water line with his back out of the water like a shark.
Good thing he was swimming like a shark and not walking like a Clarius catfish lol. That would have been way worse


So the most common mistake is overfilling the tanks or forgetting to turn off the water. Are all hobbyists "destined" to make the same mistake???

If so, then i know exactly what i have to look out for!