A thread for all of my uncle’s fishkeeping questions - filters to fish compatibility

OliveFish05

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My uncle is moving here to VA from New Hampshire. He picked up 7 tanks along the way. I’m not entirely sure he knows what he’s talking about with the sizes. Im sure he’s just saying whatever the sellers told him. From what I know, he’s got a 125, 180, a 60, a 40, 30, and a 20, and one I’m not sure about, maybe a 220? It’s really wide, really long, and maybe 18 inches tall. (Aka I want it). He’s ordered 24 or so koi (some of which are currently in MY pond) to spread between them while he and His family find, buy, and move into a house and dig their pond. Right now he’s living in a family members rental less than 15 minutes away from me and is having me help him with all the setup. We setup his 125 yesterday and I brought over some cycled filter media from my tanks to get him started. When he takes his koi from our pond we will give him some more. Anyways...

This is my thread to ask all of his questions! (and correct his mistakes lol) He kept aquariums back in the day, but a lot has changed. Considering I have so much influence over his decisions about what he buys, I have taken my role very seriously.

So my first couple of questions... He wants a nice canister filter for his 180. I was going to recommend the Fluval fx6?

He bought an “algae eater”. I pressed further and he said he thought they said it was a Chinese algae eater. I don’t known much about those?

I am proud of him, he bought an api freshwater master test kit and had me test the tap water first thing:lol:

There is .25 ppm ammonia coming out of the tap. I told him it was fine, but when he needed to do large water changes it would be best to spread it out over two days, like 35% each day instead of 70% in one day. Was that good advice?
 
The ammonia in the tap water is probably chloramine. A water conditioner which detoxifies ammonia should help there. The bacteria in a cycled tank, and live plants if there are any, should remove this ammonia before it has chance to 'undetoxify'.
 
Has he ever kept fish before?

7 tanks at once is a big endeavor...
 
The fx6 is a great filter. I’ve had mine almost 10 years and it’s still going strong. It should easily provide enough flow and filtration for his 180 (I’m assuming this is a 6’x2’x2’ which is what my 180 is).

Maintenance can be a bit tiresome though, as like most big canister filters you have to disconnect it and take it away to clean. On the plus side, you can use it to do water changes instead of a a gravel vac. If he hates maintenance it might be attaching a prefilter sponge - that’ll trap some of the bigger particles and allow him to go further without having to clean it.

Some of the cheaper filters (e.g. Sunsun) might be a good alternative if he doesn’t want to pay the excessive prices that fluval charge. I haven’t used them, but lots of people seem to like them.

Also, I’ve never kept a Chinese algae eater, but I’ve never met someone with anything positive to say about them.
 
There is .25 ppm ammonia coming out of the tap. I told him it was fine, but when he needed to do large water changes it would be best to spread it out over two days, like 35% each day instead of 70% in one day. Was that good advice?
If you want to dilute something out of an aquarium, do big daily water changes.

If you do a 25% water change, you leave behind 75% of the bad stuff in the water.
If you do a 50% water change, you leave behind 50% of the bad stuff in the water.
If you do a 75% water change, you leave behind 25% of the bad stuff in the water.

Don't split big water changes into 2 smaller ones because it won't dilute anything very well. One big water change will do a lot more for the fish than two little ones over 2 days.

Good on you for helping him out, and good on him for listening to your advice :)
 

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