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Hopefully that's all it is

I didn't add any new rocks, driftwood or anything else in over a year in that tank so that shouldn't be the issue. The way I clean my filters is I clean one under tap water (easier to clean) and then will clean the other filter 2 weeks later to leave time for bacteria's to reseed the filter and then I rotate like this. I have 1 fluval 405 and 1 fluval 406 + 2 powerheads. For the fish discoloration it is possible indeed that it is from stress or submissiveness. I have been having some aggression issues which is why i'm trying to get to 45-50 fish. When these fish were in my 55 gallons it was problem free. Now that they are in the 135 that's when aggression started.

I've had some of the new ones die but it's 90% my old mbunas that are affected, some of these fish are probably close to 10 years old. Before they die usually not a lot of symptoms, the one I took a picture of I was lucky enough to see him before he died, most of the other ones were fine the day before and I found them dead in the morning. No loss of appetite and the only physical things I could find (in the case of mbunas) is what I took in the picture, that sort of discoloration on their skin.

I don't know this is sort of what i'm asking i'm quite worried as I started to add more fish (the issues started with fish i've had for over 2 years) and i'm hoping to double them from around 20 to 45-50 and want to make sure I won't loose 50 fish...

Hi everyone, Lately i've been having issues with some of my mbunas dying one after the other, about 1 per month and I can't figure out why. Water parameters are good and fish behave good. Any idea why? I've attached a picture of the last dead one and just before he died. Thanks

I think i'm at 28 fish now as well but mine is a 135 gallons and since I got the 2 powerheads it's a lot less messy.

Anyone have an idea before I loose another fish?

I also though it was over feeding or under feeding but she carefully looked at how much I was feeding them and I looked at her feeding them and she gives the same amount. The water change schedule is basically I do one the last day i'm home and one the first day i'm home so that's one every 2 weeks but I do 30% change. But yeah weird it's only this tank, in my 55 have has no fish death in the whole 2 years i've had it, my angel fish are doing great they lay eggs every 2 weeks if only they would stop eating them... I have no space to put the eggs as my 25 gallon has 30 red shoulder peacocks now. Also the water must not be that bad if they are breading...

Hi everyone, So i'm having some issues... 6 months ago I went from a regular shift schedule to working in the field 2 weeks on 2 weeks off and with that came a fish problem... Every 2 weeks i'm no, usually 4-5 days in my shift my girlfriend tells me a fish died, every shift it's the same story, and when i'm there everything is fine, no fish die and they all seem fine,I even got about 30 babies from my couple of red shoulder peacocks, my babies are in a 25 gallon and are still doing fine, then I leave and again 4-5 days in 1 fish dies, I think it's the 5th one now. Water seems fine, ammonia is at 0, nitrite and nitrates are 0 as well, it's a 135 gallon fish thank and my angels fish and roseline sharks in my 55 gallons are fine and never had any issues. Any ideas? This is getting frustrating and the girlfriend is starting to feel responsible for their death. So yeah the setup is a 135 gallons with 2 filters, 1xfluval 405 and 1x fluval 406, 2 power heads and a big air pump with 2 bubble curtains.

I've never really had an algae problem but only this annoying slimy bacteria. For CO2 I was aware it would need to be in the equation eventually but I have very few plants at the moment so didn't believe it was required for only a few.

Thanks for your replies! No I don't inject CO2 and I only use liquid fertilizer

Hi everyone, I need your help to get rid of a very annoying outbreak of Cyanobacteria in my planted tank. It's filled with that nasty green stuff in my sand, on my plants and on some glass surfaces. I've tried to vaccuum out everything I could but it just keeps coming back. Do you have any tricks to get rid of it?

I since completely change tha tank I got a 135 gallon I'll post a picture later

The only heater so far I have been very satisfied, especially by the fact they can stay on 24/7 if required without shutting off are the eheim

just an update I ended up giving up and I bought a 2 months old fluval 406

It doesn't look like the issue is caused by the lid but I could be wrong. Yeah I'm using an aqua clear 70 right now but the impeller randomly stop working once every day or 2 which is why it's just a backup filter

So I got a new shaft because the rubber on top was missing (worst part is latter I found it on the floor at home) put everything in and now it works for about 30 secs and actually pump water out and everything then it stops and I can hear the motor ting to spin the impeller, only way to get it started again is take everything apart put it back then it does the same thing again. Any idea? i'm about to throw this filter as far as I can, I just got one of my cichlid that died pretty sure it's related to them not having filter for a full day then switching back to my HOB filter which also stop working about once a day (the fulval was replacing this filter...)

Good idea..., but wouldn't water leak if there was air leak?

I took both of them out but i'm not sure what to check on the impeller, nothing is broken and it spins when I start the filter.

Thanks for the tip Jvision I tried that one with no luck

You know what... I didn't find the broken clip piece when I took everything apart, might not be this but worth looking for it

Hi all, I have having a big problem right now: my fluval 405 filter has stopped working. When it's plugged in it makes a popcorn noise and there is basically no water coming out of the filter. I took apart every single piece of the filter inspected that it's not broken and cleaned everything. There was the impeller cover with a broken clip which I replaced for a brand new one but no help. I can see the impeller is spinning, the gasket looks in good shape (I also tried to lubricate it with vegetable oil) and there is no apparent leak. Any idea?

Thanks Jvision i'll have a look for some inspiration Yeah for sure fake background would look amazing but that tank is really narrow i'm not sure it would make it look bigger, it's only 12 inches deep

Since I have discovered the world of live plants I don't think I can ever go back to fake plants, but you have a point here, and although it does not show up in the picture I have planted some small plants from my planted tank in the back as a test to see if they will eat them/move them around as cichlid usually do and surprisingly enough so far so good. So yeah I agree with you plants would help add some color and depth and I may go that route if they pass my test

Little update from what I did yesterday. I find it looks better but it's not really an improvement for territory/caves but actually a downgrade... I need to go back find some flatter stackable rocks as I can't use the 150lbs of iron/pyrite infected ones I got