My best guess would be close to $500 and I have only been keeping Bettas for a month and a week. I have 4 tanks, getting a 20g friday... Chyea it just never stops!
10gs $20
5 gallon set up $30
2.5 setup- $40
heaters ~$60
filters ~ $60
decor ~ $100
and then all the cleaning stuff... food... chemicals... fish... shipping.... oh man lol
I have everything needed except 2 bettas, 4 ghost shrimp and/or maybe 2 mystery snails, food and live plants. I will have spent about $150 total for everything!!
Oh gosh... I could have easily spent $500 on everything... Fish, tanks, gravel, vase gems, plants, heaters, filters...etc. And I have received a bunch of stuff from my parents, for my fish. I heart sales and do most of my shopping then. :)
I have spent probably $150 total on them, not including food or the fish themselves. They have a ton of plants (they'll be getting more when I get a job). That just includes plants, tanks.
10g tank w/ filter hood & lights package - $45
(i have 2 setups but 1 is from when i was in high school *cough 7 years ago cough*)
fluorescent hood - $40
gravel - $20
silk plants - $15
live plants - $15
caves - $5
Heaters(2) - $30
thermometers(2) - $3
food - $4
medications - $30
thats $207
Bettas - $33
Snails - $26
so total $266 and i may add it was well worth ever penny :)
The added cost on the electric bill is a very good point!
Plus, how many times have you purchased "a little something" to add to one of the tanks, then get it in the tank and decide you really don't like it after all? Now it sits on the shelf and you're starting to think of new ideas, with that piece, for the next tank... it just goes and goes... lol.
Yeah I found 2 more old 1 gallon tanks today, and 6 air pumps.... lol We have tons more old aquarium equipment I didn't know we had in storage, I want to put it to good use, but I want to learn more about taking care of just one fish first. Who know maybe in the years to come.
PS: The excel .xslx sheet has been updated to fix spelling, water test costs, and now includes gas costs to drive to the pet store.
PPS: Also attached to this post is the estimated electrical costs for a 10 gallon tank, with a power filter, and incandescent lighting.