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Actually, @Essjay, I think we're on the same page here. I bought the 207 rather than the 107 for its larger filter canister - 5.3L instead of 3.7L. This I decided would mean more media volume/surface area for the water to pass over and thus longer maintenance intervals. The quoted 'basket...

I found the Oase internal filter that came with my tank was ineffective and ended up needing to be rinsed out every three days. Also, taking the thing out all the time disturbed the plants etc. I've just upgraded to a fluval 207 external filter. Time will tell but apparently I'll only need to...

For the record, I'll mention my first impressions of the Fluval 207. Installation was easy, but I thought the brackets that mount the hoses to the tank were cumbersome to fit and bulky. One of these days I may look into some alternative inlet/outlet apparatus. It's noisier than I had hoped...

I bought the 207 rather than the 107 because I wanted the higher filtration capacity (a reaction to having to clean out the old unit every 3 days), but was worried about flow. But then I noticed you can adjust flow rate on these things. In fact, the flow rate on this 207 doesn't seem as fast...

Good suggestion - unfortunately I'd already fitted the 207 by the time I you posted this and I've discarded the old filter unit. I stuffed two of its sponges into the new unit, in with the ceramic tube things.

I've just ordered a Fluval 207 external filter pump to replace the hopeless internal unit on my aquarium. Here's my question: what's the best procedure for migrating from one to the other, without risking de-cycling the tank? I don't really want to run both pumps at the same time; as it is...

The lights are a pair of full spectrum LED tubes (Oase Highline Classic LED 70). They're so bright I can't run both of them for long. I'm waiting till I can afford something like the Fluval Aquasky to replace them.

If it's 'medium care' then I missed that memo! All I've done is get in there with the scissors now and again.

@NannaLou - The Green plant on the right in my aquarium is Micranthemum umbrosum, I've learned: https://tropica.com/en/plants/plantdetails/Micranthemumumbrosum(048)/4475

I wish I did. The guy who originally bought the aquarium couldn't remember what the shop said it was. All I know is it grows at incredible speed, and spreads... The gourami love to hide in it.

No question - just thought I'd update you all on my aquarium in light of the various issues I've raised recently. First of all, as predicted by all of you, the third Rainbow Dwarf Gourami I bought died. However, the other two have settled in nicely with no signs of aggression toward each other...

which shows the other problem new fish keepers face - contradictory information across websites and forums. Several 'authoritative' websites (such as fishkeepingworld.com) describe dwarf gouramis as "peaceful and tolerant" and/or "timid"...

I hear you. Ironically the reason I bought these fish online was because my LFS didn't have any - but also because they had previously sold the original owner of the tank a gold gourami insisting it was a pearl gourami. This was the fish that started eating the other fish. They also sold four...

Point taken. It may indeed die, any minute now. It may have died while I've been writing this. I would prefer it did not die because I failed to do something I should or could have done. Regardless of whether it's male or not, bullied or not, weaker than the others or not, it obviously has a...

Thanks for your input, Colin. I must admit it would never have occurred to me to check the water chemistry of the bag they came in. I had already decided all three were males. The place I ordered from doesn't allow you to specify the sex in the shopping cart but there is an 'instructions'...

FFS. 24 hours later and no change. If this fish has DGD or DGI(?) then there's nothing I can do anyway, so I'm looking at other possibilities (or clutching at straws if you like). (1) Swim bladder malfunctioning due mechanical shock (the fish bashed into something on its journey to me)...

Yes, I do.

Would a pinch of pure salt dissolved in some tank water and then added be a good idea?

Obviously the spectre of DGD looms over all this. And if that's what it is then it's already too late to protect the the other two since they came from the same tank and spent 36 hours together in the same bag.

Indeed. I guess it's all I can do.

My water parameters are (I think) pretty good - pH=6.5, NO2=0, NH3=0, PO4=0, NO3=10-20, weekly water changes 35%-40% - but regardless, the one fish is behaving completely differently to the other two, so I don't think it's my tank...

Yesterday, I added three Dwarf Rainbow Gourami to my community. I bought them online, which I mention only to remark that (a) they were bought sight unseen and (b) they would have been pretty stressed when they arrived. I followed the usual procedures in adding them to the tank. I did note...

Well like I said time will tell. Since I opened this thread, two of the new gouramis have brightened up and made themselves at home but the third is just sitting on the bottom crammed into a corner. Hopefully tomorrow it will have cheered up - I can't see any visible injury, swelling or...

I'm finding out new stuff all the time as I get into this hobby. As for whether online ordering works for me, we'll have to see how my new gouramis are doing after a few days. They're being pretty timid at the moment, hiding at the back in the shadows as you'd expect...

And I imagine with acrylic it should be possible to put screws or pins into the joints to supplement the silicon.

Perhaps everyone except me already knew about this but I only recently discovered you can order tropical fish on line. I was a little uncertain about how safe this process would be but I ordered three dwarf rainbow gouramis (and one assassin snail, just to find out what they're like). I had to...

OK... so the consensus is that there's probably not a problem with my tank or my fishkeeping technique so much as there's a problem with the design of my filter, and I should get a better one. The Eheim range looks like a good choice if I want to stay in-tank; HOBs are an alternative if I can...

Well in fairness I was looking at reviews on Amazon, which is the home of unreasonable reviews. There were a couple of comments saying the thing broke, some saying it wouldn't stay stuck to the side of the tank, and some noting it had to be cleaned out frequently - which was the point of my...

Thanks for the tip. Quite mixed reviews I've noticed though.

Food for thought. Only practical issue would be I'd have to move the tank further away from the wall to fit it in. Not a trivial exercise, especially since I levelled it very carefully... But the other issue for me might be the noise. I'm an audio producer and I edit and mix in the same room...

Good idea - certainly cheaper than a canister filter, but then I wouldn't be able to have a lid at all, would I?

which is? 'Scuse my ignorance... no hang on I get it - a Hang On Back filter. Good idea - certainly cheaper than a canister filter, but then I wouldn't be able to have a lid at all, would I?

68cm internal