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The round-tube LED light with suction cups are meant to stick to the glass inside the tank. You can stick it above the water line rather than fully submerged, that will reduce algae growth on the light and make it easier for tank maintenance. If you’re comfortable with having a heater in the...

It eats fry and small fish, so shouldn't be in the tank.

The camera can be set up to take “normal pictures”. For Android phones, go to the Camera Settings and turn the “Save pictures as previewed” to off. iPhones and other phones have the same option.

Bangkok’s tap water is chlorinated, and there’s little doubt that Nonthaburi which is not far from Bangkok has chlorinated water as well.

If you silicone a centre brace to the top of the tank it won't affect the structural integrity of the tank. If you drill holes in the tank, then it might.

For some of us, play sand is considered sand, whereas anything else with a grain size larger than play sand is considered gravel. So sand gets sucked into the filter but it doesn’t scratch the aquarium glasses as much as gravel. For others, sand can have a grain size close to 5mm so it doesn’t...

You mention your tap water has 0ppm of nitrates, which sounds correct as Sydney has very high standards of tap water. But it’s strange that you can’t get your aquarium water to below 40ppm. What I suggest you do is to do a test before a water change, then change 4 buckets or 40 litres of water...

I was talking about the QT, not the main tank.

Why is your source water super hot, does it come from a holding tank sitting on your roof exposed to the sun?

That isn’t so bad. But if possible I’d ask the store for their water to fill half the QT with the other half filled with your own tap water, just so that I don’t stress the fish too much. Healthy fish will do OK but weaker fish may not. If you don’t quarantine but put the new fish with your...

After you’ve run all the tests again, if the pH of your tap water (and your tank) is confirmed as 8 as you mentioned earlier, and the pH of the fish store is much lower, say 6.5, then I wouldn’t place the fish from the store in my tank immediately as this would mean an immediate change of pH by...

If the breaker keeps tripping when the heater is plugged in, either the heater is the problem or the breaker is designed for low current. I suspect the former, I'd get a new heater and see if that solves the problem.

3 & 4. Bettas will eat any food bought from the stores, flake, pellets, dry foods, but it could take a few days before they’re used to new and different foods. Just watch their bellies and you’ll know if you feed them too much. If they don’t eat after they’ve been in the tank for a few days then...

For small fish like rasboras, it's not uncommon to lose a few during the first few weeks. But you shouldn't lose anymore after that. That said, pH 8 is a bit high for them.

Amazing photos. I wanted to get out to watch it but didn't like the cold, one day perhaps.

For cycling your tank? Yes, it’s OK. Lower the high range pH for what purpose, to keep fish after the tank is cycled? We need some context, without it we can’t provide a sensible response. The water in your tank has one pH, it doesn’t have a high range pH as well as a normal range pH. If the...

Manual removal will keep it under control but won’t eradicate it. Aquariums containing fish like Malawi cichlids or gouramis are free of snails.

Google "Drop bear reporter" to see a real drop bear.

Nothing more dangerous in Australia than a drop bear. One of those is more dangerous than all the spiders, sharks, crocs and snakes combined.

Fantastic photos, the bird in flight is great! I have birds visiting the yard in spring when the trees are flowering. Then they disappear until the next spring.

That’s useful! Makes me feel better now that all the chemistry lessons all those years ago weren’t a complete waste. And atomic weights have real life applications, not just some things to memorise to pass exams :D.

I feed my rasboras fine granules. They must have been fed something completely different at the store as it took them awhile before they figured out that the granules were fine to eat .

Sorry if this is a bit off topic. In rural villages in the tropics, many households located away from the river have a pond for water supply. The pond is filled with rainwater during the rainy season and is slowly evaporated during the dry season, and there’s no other inflows into the pond...

Byron will be missed. He really cares about the welfare of fish and I greatly respect him for that.

Rainbow sharks are cute, peaceful and friendly with all fish when juvenile but aggressive and territorial when mature. They first attack other sharks but will soon attack other fish in the tank. Each shark will need its own tank, or a much larger tank than 55 gallon is needed if more than one is...

Thanks, that’s a good way to tell them apart. In this photo taken earlier today, I‘d say the 2nd fish from the left is an espei with the rest being hengeli. They should spawn after reaching 1 year old. If you have them for more than 6 months then they should now reach maturity. I’d like to hear...

I bought 10 rasboras over a month ago which were supposed to be espei, but in my QT they look more like hengeli. The first video clip. Anyone rasbora keepers who can tell what they are? You may spot 2 espei in there too, the 2 remaining from a group I bought about 2 years ago. The 2nd clip is...

Water hyacinth should grow well indoors around pH 7 and low GH. Temp of 23 celsius (water and air temp) will be adequate but shouldn’t be lower. If you have a 4 foot tank with a HOB filter pushing water down the length of the tank you can place the filter on one side and the plant on the other...

I’d have to set up another tank if I want to keep a dozen in a 4 foot species tank, so that’s unlikely to happen in the near future. One of my 4’ tanks has 7 African cichlids and a rainbow shark in it, so I don’t think that’s suitable for the bumble bees. That's good info. Do you think that...

I caught one in a Mekong tributary when I was a kid and that was the only time I saw one in their natural environment. Apart from their habitat I know almost nothing about them. Hoping to get one and see how it goes.

Just wondering if anyone has kept this fish? Given that it’s nocturnal, is it worth keeping?

Going back to post # 6, we need 0.029mL per 1L of tank water. 1mL is 34 times the volume of 0.029mL (1mL / 0.029mL = 34.48). So, if 0.029mL treats 1L of tank water, then 1mL treats 34L. Using the same calcl, if another product has the concentration of 27g of Levamisole per litre (in the bottle)...

2.94e-5 means that there’re five zeros before the number 2.94, i.e. 2.9e-5 is the same as 0.000029 It’s a way to shorten the number and is known as scientific notation. If the number is 0.000000000029117, it’s easier to express it as 2.9117e-11 so that we don’t need to count the zeros. You can...

I thought you’d stopped keeping fish! Your concentration of Levamisole is 68g (or 68 000 mg) per litre of the stuff in the bottle, and you want 2mg per one litre of aquarium water. That means that you only need 0.000029 litre (2 / 68000) of the stuff in the bottle per 1 litre of aquarium...

I saw an impressive giant gourami during a trip to the Royal Botanic Garden in Kandy, Sri Lanka. I have a paradise fish, if that’s considered a gourami.