Thank you for ideas/info so far! Happy to hear more ^^
In most of my tanks, 3-30 gallon, I use a gravel vac tube, without the big vac attachment. Suck on one end like the airline, just be careful with it and keep your thumb near the outflow to block it off if you get too close to a critter or gravel.
I have no luck with this, always get gravel/moss/loose flora x.x
Turkey baster for me on my <5 gallon tanks
Haha my husband would not be happy if I took our only working turkey baster for water changes (I swear the stores here seem to hide them in the "off" months).
Tom's tank battery powered vac with the extension tube, no attachments. I usually use it to clean the lower parts of the tank. Then I'll vac the surface of any larger debris/leaves that the skimmer doesn't pick up. Hook up the output to a hose and goes direct into the sink.
Then I put the vac in a bucket and have it pump water back into the tank with a intake filter over the other end of the hose to avoid destroying the scape.
^doing the reverse, filling.
Takes me about 15 minutes to do a 50% change on a 18g.
Tried it on my 1.5g. Gotta be a bit more careful.
Hmm I'd not considered powdered siphons, how quickly do you go through batteries on those?
I use this on all my Betta cubes
3ft of hose and a gallon container.
It's self explanatory. 2 Holes on the cap with snug fit tubing. Long hose goes in tank while the shorter hose is used to start siphon. Make sure the cap and hose are both snug fit and simply suck on the short end until water starts to flow.
I used a piece of plastic coat hanger to keep the tubing straight and to stir up the water and gravel a bit.
Nice DIY. I realized I put "airline tuber" in my first post, but I actually use the wider siphon hose tubing (opps), is your using the narrower airline tube? Like the suction start method you have, better than putting a mouth right on the tube that has tank water go through it (yuck).
I use a small fountain pump and tube to remove water to a bucket. I dont worry about cleaning gravel. Then turn it around to pump new water back I to tank.
Interesting... though I'm going to have some messy fish like dwarf puffers in teh 12 long which like to leave snail shells littering the bottom after they suck squishy parts out so need something I can get crap off the bottom without without sucking up all of "the bottom"