Living on a sailboat or in a camper can have some issues you won't find in a traditional house-- your "plumbing" situation is not going to be as seamless as what you are use to in a house or apartment... you'll have to deal with holding tanks and sewage treatment and disposal, macerators break all the damn time, 6 gallon hot water heaters, filling water tanks, space is small inside (and often outside), insulation is usually non existent.

Of course this is not applicable when you are filling up a 25000 gallon swimming pool, so we could call them and say we are filling up a pool and have the sewer rate waived for the time the water is used for the fill. 

I'd write them an email saying that since fish and birds are pets, that they aren't allowed per the terms of the lease.If you want to give them permission, require them to sign an addendum with additional pet fees, if allowed, or a higher rent or deposit, and at least required renters insurance to cover any additional damage that the deposit won't cover.I live in independent senior housing now and our lease says not fish tanks over 10 gallons. 

Home Depot and Lowe’s have sections of clearance gallons or buckets on the side.

Our NG billing is $300/month over the winter months & about $80/month for the 80 gallon NG hot water tank May-Oct.

Keeping aquaria greater than 20 gallons requires our written permission.

Painting is about my best ROI value-add but I do it fast and have 82 gallons of quality mistints to choose from on shelves.

Get a $25 gallon of rustoleum white and refinish it with that

Then use construction adhesive straight out of a gallon can to glue the 1x4.

My property manager had two plumbers quote us $2800 and $2900 to swap it out with a new one (Commercial 75 gallon heater).